ms hysical roperty measurement system ntegrated measurement …¾ura ppms-d573.pdf ·...

12
PPMS ® Physical Property measurement system Integrated measurement applications LOT-QuantumDesign Europe. For your local contact click at: www.lot-qd.com eMail: [email protected] System features The Quantum Design Physical Property Measurement System (PPMS) represents a unique concept in labora- tory equipment. It is an open architecture, variable temperature-field system that is optimized to perform a variety of automated measurements. At Quantum Design we know your time is valuable, so we brought laboratory automation to a new level. While the PPMS automatically runs your measurements, you can be analyzing data from previous measurements, planning your next experiment, and creating new materials. The PPMS works like a dedicated system, but its tre- mendous flexibility lets you perform different types of measurements. Plus, you can easily integrate your own unique experiment with the ppms. The following pages list specially configured PPMS instruments for heat capacity, magnetometry, and electrotransport applica- tions. However, any of the capabilities can be combined to configure a system suitable for your particular research needs. Ease of use The hallmarks of the PPMS are automation and ease of use. You can quickly and easily configure the PPMS to perform different types of measurements. In a matter of minutes you can install a measurement application, set up an automated sequence, and start collecting mean- ingful data. And, the PPMS is designed to run 24 hours a day, 7 days a week. MultiVu software PPMS MultiVu is a powerful software for the perfor- mance of complex measurements with a maximum of automatization. It allows both the measurement and evaluation of comprehensive data sets. Complex mea- surement sequences can be created by simply using click-and-drop. Data can be viewed in a graphic, tabular, or raw data format. The raw data may either be processed directly by MultiVu or exported as an ASCII file to be pro- cessed by the user. Third party instruments (e.g. external current sources) may easily be controlled via MultiVu. This allows the user to create customized setups without losing the automation of the measurements runs. Outer wall of sample chamber Contact leads Sample Sample puck “Keyed” buttom connector PPMS sample chamber Much of the versatility of the PPMS is based on the design of the PPMS probe. The probe incorporates the magnet, the temperature control, and the sample puck connector. Our most versatile instrument offering the widest range of magnetic, thermal and electrical measurements

Upload: others

Post on 22-Apr-2020

4 views

Category:

Documents


0 download

TRANSCRIPT

Page 1: MS hysical roperty measurement system ntegrated measurement …¾ura PPMS-d573.pdf · 2013-05-02 · MS ® hysical roperty measurement system ntegrated measurement applications LOT-QuantumDesign

PPMS® Physical Property measurement system

Integrated measurement applications

LOT-QuantumDesign Europe. For your local contact click at: www.lot-qd.com

eMail: [email protected]

System features

The Quantum Design Physical Property Measurement System (PPMS) represents a unique concept in labora-tory equipment. It is an open architecture, variable temperature-field system that is optimized to perform a variety of automated measurements. At Quantum Design we know your time is valuable, so we brought laboratory automation to a new level. While the PPMS automatically runs your measurements, you can be analyzing data from previous measurements, planning your next experiment, and creating new materials.

The PPMS works like a dedicated system, but its tre-mendous flexibility lets you perform different types of measurements. Plus, you can easily integrate your own unique experiment with the ppms. The following pages list specially configured PPMS instruments for heat capacity, magnetometry, and electrotransport applica-tions.

However, any of the capabilities can be combined to configure a system suitable for your particular research needs.

Ease of useThe hallmarks of the PPMS are automation and ease of use. You can quickly and easily configure the PPMS to perform different types of measurements. In a matter of minutes you can install a measurement application, set up an automated sequence, and start collecting mean-ingful data. And, the PPMS is designed to run 24 hours a day, 7 days a week.

MultiVu softwarePPMS MultiVu is a powerful software for the perfor-mance of complex measurements with a maximum of automatization. It allows both the measurement and evaluation of comprehensive data sets. Complex mea-surement sequences can be created by simply using click-and-drop.

Data can be viewed in a graphic, tabular, or raw data format. The raw data may either be processed directly by MultiVu or exported as an ASCII file to be pro-cessed by the user.

Third party instruments (e.g. external current sources) may easily be controlled via MultiVu. This allows the user to create customized setups without losing the automation of the measurements runs.

Outer wall of sample chamber

Contact leadsSample

Sample puck

“Keyed” buttom connector

PPMS sample chamber

Much of the versatility of the PPMS is based on the design of the PPMS probe. The probe incorporates the magnet, the temperature

control, and the sample puck connector.

Our most versatile instrument offering the widest range of magnetic, thermal and electrical measurements

Page 2: MS hysical roperty measurement system ntegrated measurement …¾ura PPMS-d573.pdf · 2013-05-02 · MS ® hysical roperty measurement system ntegrated measurement applications LOT-QuantumDesign

PPMS® Physical Property measurement system

Integrated measurement applications

LOT-QuantumDesign Europe. For your local contact click at: www.lot-qd.com

eMail: [email protected]

Sample mounting

The PPMS sample-mounting system is the most interest-ing and unique feature of this instrument. At the bottom of the sample chamber is a 12-pin connector pre-wired to the system electronics. This connector allows you to plug in a removable sample insert or sample “puck” and offers convenient access to electrical leads for ap-plication hardware and electronics. Most pucks include a thermometer in close proximity to your sample, some of the measurement pucks also include a heater. You can use this puck technology for integration of own experimental ideas.

Open architecture

The tremendous flexibility of the PPMS lets you create your own experiments and easily interface your own third-party instruments to the PPMS hardware. The PPMS MultiVu software supports linking capabilities, so you can write your own programs in Delphi, C++, or Visual Basic to synchronize PPMS functions with the activity of other instruments to perform your custom ex-periment. The model 6000 PPMS controller houses and controls all the important components of the instrument to provide direct communication with the application electronics for rapid data acquisition.

Temperature control operation

To control the temperature, a vacuum pump draws helium into the annular region where heaters warm the gas to the correct temperature. This design reduces thermal gradients and increases system flexibility by making the sample chamber a controllable environ-ment. For example, the sealed sample chamber may hold a high vacuum without the need for additional inserts. This is significant for the use of the heat capac-ity and Helium-3 capabilities.

The temperature control system offers the following features:

n Temperature sweep capability allows measurements to be taken while sweeping the temperature at a user-defined rate (0.01 - 6 K/min).

n Continuous Low-Temperature Control (CLTC) ensures precise temperature control, unlimited operation be-low 4.2 K, and smooth transitions through the 4.2 K helium boiling point.

n Temperature range of 1.9 - 400 K accommodates many different types of measurements.

n Optional capabilities can be used to extend the tem-perature range. A helium-3 or a dilution refrigerator are available to reach lower temperatures. The VSM option can run up to 1.000 K with an oven.

Configurable thermometry

The UserTemp feature makes it extremely easy for you to incorporate your own calibrated thermometer into the hardware so that your thermometer can control the system temperature. UserTemp not only reads the thermometer but also controls the helium gas flow and heaters to minimize the time required to stabilize at each selected temperature. Many of the PPMS options utilize this feature to monitor the temperature close to the sample.

Field control

The PPMS can be configured with a 9 T, 14 T or 16 T longitudinal magnet or a 7 T transverse magnet. The low noise, bi-polar power supply allows continuous charging through zero field with current compensation and over-voltage protection.

Specialized pucks, 2.4 cm in diameter, are used for different measurement applications

The self-contained 3He Refrigerator lowers the minimum sample temperature to <0.4 K

Page 3: MS hysical roperty measurement system ntegrated measurement …¾ura PPMS-d573.pdf · 2013-05-02 · MS ® hysical roperty measurement system ntegrated measurement applications LOT-QuantumDesign

PPMS® Physical Property measurement system

Integrated measurement applications

LOT-QuantumDesign Europe. For your local contact click at: www.lot-qd.com

eMail: [email protected]

Thermal measurements

Quantum Design offers with the heat capacity and the thermal tansport option two powerful thermal measurement options for the PPMS. The measurement of the heat capacity of solids can provide considerable information about the lat-tice, electronic, and even magnetic properties of materials. In measuring the thermal transport properties of a material specimen a researcher can learn considerable information about the electronic as well as the ionic lattice structure of that specimen. Thermal conductivity is a mea-sure of the ability of a material to conduct heat.

Thermal transport option (TTO)The thermal transport option (TTO) enables measure-ments of thermal properties, including thermal conduc-tivity κ and Seebeck coefficient (thermopower) α. The system measures fully automated the thermal conductivity by monitoring a temperature drop as a known amount of heat passes through the sample. For the thermoelec-tric Seebeck effect the system measures the voltage drop across the sample as a heat pulse is applied. The temperature drop and the voltage drop are measured simultaneously and in combination with a four-probe re-sistivity measurement the so-called “thermoelectric figure of merit” (ZT = S2T/(ρκ) ) is received, which is of main interest for the investigation of thermoelectric materials.

n Specially designed heater and thermometer shoes, which can be used for different sample shapes and which can be used in four-probe or two-probe configuration.

n Small and highly accurate thermometers feasible for the measurement of small temperature differences

n Ideal environment due to high vacuum in the sample chamber (TTO requires the high vacuum option)

n Sophisticated software which uses a dynamical model of the heat flow

n A continuous measurement while sweeping the tem-perature is possible as well as doing the measure-ment at a certain constant temperature

SpecificationsMeasurement capabilities

Thermal conductivity κSeebeck coefficient SElectrical resistivity ρThermoelectric figure of merit ZT

Temperature range 1.9 - 390 K

Pressure High vacuum (<10-4 torr)

Heat capacity

To use the heat capacity option, you mount the sample on an easy-to-install, plug-in microcalorimeter sample puck using a special sample-mounting fixture

The heat capacity measurement system performs fully automated relaxation heat capacity measurements. Each measurement is analyzed using a sophisticated two-tau model™ to accurately simulate the effect of the heat flow between the microcalorimeter platform and the sample (tau2) as well as the heat flow between the platform and puck stage (tau1). The heat capacity mea-surement system includes a high-vacuum system.

n Advanced heat capacity algorithms calculate the actual thermal coupling of the sample to the micro-calorimeter platform, curve fit the data, and then compensate for this coupling when determining the heat capacity of the sample.

n A built-in data subtraction feature automatically re-moves the background heat capacity of the sample platform and adhesive.

n All calculated fitting parameters and raw data, including a χ2 quality value, are saved in the data file.

n Application software automatically acquires, ana-lyzes, and displays data.

SpecificationsTemperature range 1.9 - 350 K

Temperature extension with low temperature stages (He-3, DR)

Sample size 1–500 mg

Resolution 10 nJ/K at 2 K

Page 4: MS hysical roperty measurement system ntegrated measurement …¾ura PPMS-d573.pdf · 2013-05-02 · MS ® hysical roperty measurement system ntegrated measurement applications LOT-QuantumDesign

PPMS® Physical Property measurement system

Integrated measurement applications

LOT-QuantumDesign Europe. For your local contact click at: www.lot-qd.com

eMail: [email protected]

Magnetometry

The magnetometry applications can be embedded in the PPMS with its automated field and tempera-ture control capabilities. The result is a powerful magnetic workstation for different requirements of sample characterization.

VSM

The vibrating sample magnetometer (VSM) is a power-ful measurement system to be used for magnetic sample characterization. The VSM option transforms your PPMS into a sensitive DC magnetometer for fast data acquisition. The movement of the sample is done by a special sample transport, which has a linear character-istic and thus is very precise and flexible. The optional oven and large bore upgrade are useful and further extend the capability of the VSM.

n Rapid and completely automated centering opera-tion of the sample.

n Sensitive DC magnetic moment measurement up to the maximum field of the magnet

n VSM measurement system is based on the CAN network protocol and includes the Model 1000 CAN tower

n Sweeping of the magnetic field or of the tempera-ture while doing the measurement is possible

AC/DC magnetization

Servo-motor, coil set, and sample rod for the ACMS

The AC measurement system (ACMS) provides you with the capability to perform both AC susceptibility and extraction DC magnetization measurements without changing hardware.

n A single automated measurement sequence can per-form both AC and DC magnetization measurements.

n Direct measurement of the instrumental phase shift, not available on any other AC susceptometer: This feature uses integrated, low inductance calibration coils to measure and subtract background phase shifts prior to every AC measurement point.

n High-speed digital filtering: By using a DSP chip, the ACMS improves the signal-to-noise ratio over analog filters to offer excellent performance over a wide frequency range.

n A compensation coil reduces environmental noise in AC susceptibility measurements.

SpecificationsTemperature range 1.9 - 350 K

AC frequency range 10 Hz to 10 kHz

AC field amplitude range

2 mOe to 15 Oe

AC susceptibility sensitivity

2 x 10–8 emu at 10 kHz

DC sensitivity 2.5 x 10-5 emu to 5 emu Temperature stability may be reduced at low tempera-tures due to sample movement.

-3 10-4

-2 10-4

-1 10-4

0

1 10-4

2 10-4

3 10-4

-20 -10 0 10 20

Mom

ent (

emu)

Magnetic Field (Oe)

SpecificationsRMS sensitivity 10-6 emu or 0.5%

Typical sample mass <1 g

Oscillation amplitude (typical) 0.5 to 3 mm

Frequency 40 Hz

Coil-set bore 6.3 mm

Large bore coil-set (optional) 12 mm bore

Sample temperature 1.9 - 400 K

Sample temperatures with VSM oven (optional)

300 - 1 000 K sensitivity:10-5 emu

Page 5: MS hysical roperty measurement system ntegrated measurement …¾ura PPMS-d573.pdf · 2013-05-02 · MS ® hysical roperty measurement system ntegrated measurement applications LOT-QuantumDesign

PPMS® Physical Property measurement system

Integrated measurement applications

LOT-QuantumDesign Europe. For your local contact click at: www.lot-qd.com

eMail: [email protected]

Ultra low field

The ultra low field (ULF) for the PPMS, actively cancels residual magnetic flux in the PPMS superconducting magnets so samples can be cooled in a very low field.

The PPMS ULF option uses an additional superconduct-ing coil wound directly on a specially designed coil form that fits between the magnet and the PPMS outer vacuum jacket. The field in the sample space is mea-sured using a customdesigned fluxgate magnetometer. An automated routine measures the remanent field in the sample chamber and uses the superconducting null-ing coil to cancel the remanent field. It then performs a controlled quench of the primary superconducting mag-net to trap this zero flux state so that the power to the nulling coil can be turned off. The process is iterated to achieve extremely low remanent field. The fluxgate also allows low field profiling of the magnetic field in the sample chamber.

SpecificationsResidual field < 0.1 Oe at any point

Residual field uniformity < ±0.1 Oe along 4 cm at the center of the coil set

The ultra low field option is optional also available for the PPMS-VSM magnetometer system.

Torque magnetometry*

The PPMS model P550 torque magnetometer option (Tq-Mag) incorporates a torque-lever chip mounted on a PPMS horizontal or vertical rotator platform for performing fully automated, angular-dependent mag-netic moment measurements at a wide range of fields and temperatures. Specifically designed for measuring small, anisotropic samples (e.g., single crystals, thin film samples, etc.), this highly sensitive torquemeter uti-lizes a piezoresistive technique to measure the torsion of the lever created by the applied magnetic field on the sample moment Tq-Mag provides excellent sensitiv-ity in high magnetic fields normally not accessible in other measurement techniques. This torque detection system offers substantial immunity to gravity effects and minimal temperature dependence, which is accounted for in an automated calibration of the torque lever.

This option includes: n Torque magnetometer chips n Special rotator platform sample boards with chip

holder n Software module that integrates into the PPMS oper-

ating system Tq-Mag may be used in both the longitudinal and transverse magnet configurations. The required rotator aids in locating the angle of the sample that gives the largest signal when measuring torque versus field.

SpecificationsSample size Up to 2 x 2 mm2

RMS Torque noise level 1 x 10-9 Nm for 40 sec. sampling time

* Quantum Design developed the torque magnetometer in collaboration with the IBM Research Division, Zürich Research Laboratory, and the physical institute of the University of Zürich, Switzerland.

Tq-Mag chip with integrated Wheatstone bridge

Page 6: MS hysical roperty measurement system ntegrated measurement …¾ura PPMS-d573.pdf · 2013-05-02 · MS ® hysical roperty measurement system ntegrated measurement applications LOT-QuantumDesign

PPMS® Physical Property measurement system

Integrated measurement applications

LOT-QuantumDesign Europe. For your local contact click at: www.lot-qd.com

eMail: [email protected]

Electro-transport option (ETO)

The electro-transport option (ETO) enables users to make several different types of electric transport mea-surements over a wide range of resistance values and sample types. It includes the measurement of AC and DC resistance, I-V curves, and differential resistance.

n Sample contact in two or four-probe configuration n Two different channels for the simultaneous measure-

ment of two samples n Each channel consist of a high precision current

source and a voltage preamplifier coupled to a digital signal processor.

n Can be used as additional option to ACT or as stand-alone Electro-transport option on your PPMS

Electro transport

The PPMS offers automation and conve-nient sample mounting for all types of angular-dependent electro-transport mea-surements, including resistivity, hall effect, I-V curves, and your own experimental design. Let Quantum Design simplify your transport measurements.

DC resistivityThe DC resistivity option adds resistance bridge capa-bility to the model 6000 PPMS controller. This bridge provides four independent channels that you can use for van der Pauw and four-wire resistance measure-ments (up to three samples in a single sequence).

SpecificationsCurrent range 5 nA to 5 mA

Sensitivity 20 nV

AC transport measurement system (ACT)

The AC transport measurement system (ACT) option is a precision current source and voltage detector that supports four different types of automated, electrical transport measurements: AC resistivity, five-wire Hall effect, I-V curve, and critical current. A PPMS with integrated ACT provides fast data acquisition and the convenience of measuring up to two samples on a single sample mount.

SpecificationsCurrent range 10 µA to 2 A

Current range: sensitivity 1 nV @ 1 kHz

Frequency range 1 Hz to 1 kHz

0.05 0.10 0.15 0.20Temperature [K]

Resi

stan

ce [Ω

]

5 10-4

4 10-4

3 10-4

2 10-4

1 10-4

0 10-0

dT/dt = -0.01 K/minaveraging time = 15 secexcitation current =80 µAexcept: 65 µA @ 100 Oe : 45 µA @ 120 Oe

H = 0

H = 10 Oe

H = 30 Oe

H = 60 Oe

H = 100 Oe

H = 120 Oe

SpecificationsCurrent range 10 nA to 100 mA in continuous

operation

Frequency range DC, and 0.1 Hz to 200 Hz in AC

Typical resistivity range 10 µΩ to approx. 10 MΩ (4-wire mode)

1 MΩ to 5 GΩ (2-wire high resistance mode)

Electrical transport option on dilution refrigerator: resistance vs. temperature on sample of Ir1-xRux

Page 7: MS hysical roperty measurement system ntegrated measurement …¾ura PPMS-d573.pdf · 2013-05-02 · MS ® hysical roperty measurement system ntegrated measurement applications LOT-QuantumDesign

PPMS® Physical Property measurement system

Integrated measurement applications

LOT-QuantumDesign Europe. For your local contact click at: www.lot-qd.com

eMail: [email protected]

Horizontal and vertical rotators

Horizontal rotator with various sample-mounting platforms.

You may take advantage of the horizontal and vertical rotators to obtain information about angular depen-dence. Samples are mounted on removable platforms. A thermometer, in direct contact with the platform, accurately determines the sample temperature. Both rotators are available with standard or high-resolution motors.

Multi-function probe

The multi-function probe option extends measurement capabilities of the PPMS by allowing you to easily add hardware such as fiber optics, microwave guides, and external electrical leads to customize your experiment. This probe incorporates the PPMS sample space electri-cal connections and can utilize the electro-transport accessories.

Pressure cell

For electric measurements under pressure a PPMS pressure cell is offered. The cell has a sample space of 4.4 cm and it fits into the puck connector.

Different sample-mounting structures for the rotators are

available for each type of measurement.

These platforms hold the sample parallel or perpendicular to the

field. Vertical rotator is pictured.

SpecificationsRange -10º to 370º

The horizontal rotator option rotates the sample about the horizontal axis.

Angular step size 0.053º for standard resolution; 0.0045º for high resolution

The vertical rotator option rotates the sample about the vertical axis.

Angular step size 0.013º for standard resolution; 0.002º for high resolution

Compatible with DC resistivityAC transport optionTorque magnetometry option

SpecificationsMaximum pressure (load) 2.0 GPa or 3.0 GPa

Maximum sample pressure @ 7 K 1.6 GPa or 2.4 GPa

Page 8: MS hysical roperty measurement system ntegrated measurement …¾ura PPMS-d573.pdf · 2013-05-02 · MS ® hysical roperty measurement system ntegrated measurement applications LOT-QuantumDesign

PPMS® Physical Property measurement system

Integrated measurement applications

LOT-QuantumDesign Europe. For your local contact click at: www.lot-qd.com

eMail: [email protected]

Surface physics

Let your PPMS host an SPM insert and get new exiting possibilities. You just use the easy way of controlling the magnetic field and the temperature for surface investigation. The PPMS-SPM insert is manufactured by attocube systems and it offers atomic force (AFM), magnetic force (MFM), confocal microscopy (CFM) or scanning hall probe microscopy (SHPM) measurements.

SPM

n Suitable for a temperature range from 2 K to 400 K n Suitable for magnetic fields up to 16 T n Easily interchangeable SPM heads n Large cryogenic scan range (12 x 12 µm2) n Minimum drift in variable field/temperature.

AFM/MFMThe PPMS-AFM is the perfect choice if it comes to de-manding imaging applications such as high-resolution scanning of topographic or magnetic information of a sample under variable magnetic field or temperature.

n High resolution AFM and MFM imaging n Quick sample and cantilever exchange n offers all common contact and non-contact modes

Specifications

Imaging modescontact mode, non-contact mode AFM, EFM, SGM, ct-AFM (conducting tip AFM)

Measured RMS z-noise 0.05 nm (expected)Contact mode @ 4 K,5 ms pixel integration time 0.12 nm (guaranteed)

CFM

Confocal microscopy (CFM) is the method of choice for obtaining clear optical images with high resolution (dif-fraction limited) and high optical throughput.

At cryogenic temperatures, the combination of high reso-lution power, clear optical spectra, and reduced thermal noise can be achieved. The plug-and-play experimental setup has made this technique the method of choice for a variety of applications ranging from examining physical structures like semiconductor quantum dots and NEMS/MEMS devices to the emerging area of nano-optics.

n High resolution confocal imaging n Various detection modes such as reflection, lumines-

cence, fluorescence, ... n Coupling of the light to other detectors possible,

e.g. spectrometer, APD, ... n Interferometric deflection detection n Large range, patented coarse positioning system

SpecificationsExcitation wavelength range 400 nm to 1500 nm

Light source Fiber coupled laser, typically 635 nm

Detection mode E.g. reflection, luminescence,fluorescence, ...

SHPM

The attoSHPM xs is an ultra-compact scanning Hall probe microscope, designed particularly for the opera-tion at low temperatures and high magnetic fields. The heart of the SHPM, a molecular beam epitaxy (MBE) grown GaAs/AlGaAs Hall sensor measures magnetic fields with unrevealed sensitivity. Local measurements of the magnetization of a sample are obtained by scan-ning the sample underneath the Hall sensor and simul-taneously recording the Hall voltage, directly yielding the local magnetic field. While other local probes may outperform the Hall sensor with respect to its lateral resolution, its ability to non-invasively obtain quantitative values for the local magnetic field makes the Hall sensor a unique tool for the study of superconductors and other magnetic materials. The exceptional combination of materials allows absolutely stable high resolution imag-ing of surfaces/local magnetic field Close-up of the MBE grown SHPM chip, showing its Hall-sensor/STM leads and the bond wires for electrical connection to the chip carrier. The Hall sensors are available as high resolution and ultra-high resolution versions, featuring an active Hall area of 500 nm and 300 nm, respectively.

SpecificationsOperation mode Constant height, or dual pass

Area field sensitivity 500 nm (high resolution)300 nm (ultra high resolution)

Page 9: MS hysical roperty measurement system ntegrated measurement …¾ura PPMS-d573.pdf · 2013-05-02 · MS ® hysical roperty measurement system ntegrated measurement applications LOT-QuantumDesign

PPMS® Physical Property measurement system

Integrated measurement applications

LOT-QuantumDesign Europe. For your local contact click at: www.lot-qd.com

eMail: [email protected]

Low temperature stages

To reach temperatures below 1.9 K two optional refrigerator systems are available, a helium-3 and a dilution refrigerator. Both systems have a close-cycle gas design and operate fully automated.

Helium-3 system

To reach temperatures below 1.9 K, an optional 3He refrigerator is available. This probe provides a mini-mum temperature of less than 0.4 K. A new concept in refrigeration design, this self-contained helium-3 refrigerator operates by continuously circulating 3He in a closed-cycle, sealed system, eliminating the need for low-temperature seals and manual valves. The Helium-3 system provides fully automated control of the pumps to support measurement capability up to 350 K. This option is specifically designed to provide lower temper-atures for heat capacity and electrotransport measure-ments. Cooldown time from 300 K to 0.5 K is less than three hours.

n No need for manually operation of any valve

n Easy plug-in of the probe in the sample chamber

n System is completely mounted on a moveable cart

n Horizontal oriented sample stage

SpecificationsTemperature range <0.4 K to 350 K

Cool-down time from 300 K to 0.5 K

3 h or less

Compatible with DC resistivityAC transport optionHeat capacity option

Dilution refrigerator

The dilution refrigerator system can be used for heat capacity and electro-transport option (ETO).

n Fully automated operation n Easy plug-in of the probe in the sample chamber n System is completely mounted on a moveable cart

SpecificationsTemperature range 50 mK to 4 K

Cool-down time from 300 K to 100 mK

8 h or less

Cooling power 2 mW at mixing chamber, 0,25 mW at sample chamber

Compatible with Electro transport optionHeat capacity option

Complete helium-3 system with probe, diaphragm pump, and cart

helium-3 probe

Page 10: MS hysical roperty measurement system ntegrated measurement …¾ura PPMS-d573.pdf · 2013-05-02 · MS ® hysical roperty measurement system ntegrated measurement applications LOT-QuantumDesign

PPMS® Physical Property measurement system

Integrated measurement applications

LOT-QuantumDesign Europe. For your local contact click at: www.lot-qd.com

eMail: [email protected]

Helium reliquefier

The reliquefier is the perfect add on for a high-capacity nitrogen-jacketed dewar. The vaporized helium is returned to a pulse-tube cooler, which is mounted over the PPMS dewar. After condensing the helium the liquid drips back into the PPMS dewar. As soon as your sys-tem is cold, there is no need for a refill of liquid helium. Any helium losses like flushing the sample chamber are compensated from a gas cylinder.

SpecificationsLiquefaction rate 10 L/day

Compressor type water-cooled

EverCool-II dewar

The EverCool-II dewar makes your PPMS cryogen-free. You just start from helium gas at room temperature and a high-efficiency cold head is cooling down to 4 K and starts liquiefication. Even it is a cryogenfree system, the dewar still has some liquid helium, which offers the flexibility of turning-off the cold-head for a certain time. SpecificationsCool-down time approx. 30 h

Liquefaction rate approx. 8 L/day

Compressor type air-cooled

Dewar and liquid helium saving options

The PPMS can be configured with different types of cryogenic dewars. From the classic liquid helium dewar with a vacuum shield to close-cycle systems with effective reliquefication technology, which makes the user independent from regular supply of liquid helium.

Standard dewarThe standard dewar has a hold time of up to 6 days. Specifications Liquid helium capacity 30 L

Static boil-off with Probe <5 L/d

High-capacity LN2-jacketed dewar

This dewar upgrade reduce the consumption of liquid helium by approx. 40% and extends the time between a refill of liquid helium.

SpecificationsLiquid helium capacity 68 L

Static boil-off with probe <3 L/d

Liquid nitrogen capacity 48 L

Static boil-off with probe <2 L/d

Comparison of reliquefier and EverCool II

Reliquefier EverCool IIFew vibrations (No effect on He3 refrigerator, little effect on SPM) Little space requirements

PPMS remains fully functional when the reliquefier is removed (e.g. for maintenance) and has its full Helium capacity

Full automation

Upgrade can be done in situ Capable to cool down from Helium gas only

Page 11: MS hysical roperty measurement system ntegrated measurement …¾ura PPMS-d573.pdf · 2013-05-02 · MS ® hysical roperty measurement system ntegrated measurement applications LOT-QuantumDesign

PPMS® Physical Property measurement system

Integrated measurement applications

LOT-QuantumDesign Europe. For your local contact click at: www.lot-qd.com

eMail: [email protected]

Magnet optionsLongitudinal ±9 T, ±14 T, ±16 T

Transverse ±7 T split coil

Field uniformity

9 T longitudinal ±0.01% over 5.5 cm x 1 cm diameter cylindrical volume (typ.)

14 T longitudinal ±0.1% over 5.5 cm

16 T longitudinal ±0.1% over 1 cm DSV

7 T transverse ±0.1% over 1 cm DSV

Bi-polar power supply

9 T longitudinal 50 A

Slew rate 1 – 19 mT/s (typ.)

14 T longitudinal 100 A

Slew rate 0.8 – 13 mT/s (typ.)

16 T longitudinal 120 A

Slew rate 1 – 22 mT/s (typ.)

7 T transverse 50 A

Slew rate 0.3 - 5 mT/s. (typ.)

Control modes

Persistent and driven modes Linear Oscillating No overshoot

Resolution

9 T longitudinal 0.02 mT to 1 T

0.2 mT to 9 T

14 T longitudinal 0.03 mT to 1.5 T

0.3 mT to 14 T

16 T longitudinal 0.03 mT to 1.5 T

0.3 mT to 16 T

7 T transverse 0.02 mT to 0.75 T

0.2 mT to 7 T

Temperature controlTemperature range 1.9 – 400 K

Accuracy ±1% zero to full field (up to 16 T)

Slew rate 0.01 – 6 K/min.

Control modes No overshootfast settletemperature sweep

Stability ±0.2% for T <10 K (typ.)

±0.02% for T >10 K (typ.)

Sample space size 2.5 cm diameter

Base system specification

UPS requirementMaximum current load 17 A

PPMS utility inserts

Page 12: MS hysical roperty measurement system ntegrated measurement …¾ura PPMS-d573.pdf · 2013-05-02 · MS ® hysical roperty measurement system ntegrated measurement applications LOT-QuantumDesign

PPMS® Physical Property measurement system

Integrated measurement applications

LOT-QuantumDesign Europe. For your local contact click at: www.lot-qd.com

eMail: [email protected]

Chart of options

Model PPMS-0 PPMS-9 PPMS-14 PPMS-16 PPMS-7-Trans

PPMS-DynaCool*

Magnet No magnet Longitudinal Longitudinal Longitudinal Transverse Longitudinal

Field 9 T 14 T 16 T 7 T split-coil 9 T / 14 T

Heat capacity P650 4 4 4 4 4 4

TTO P670 4 4 4 4 4 4 ~mid 2014

VSM P525 8 4 4 4 4 4

VSM oven P527 8 4 4 4 4 4

VSM-ULF P701 8 4 N N N 4 in future

ACMS P500 8 4 4 N N 4 in future

ACMS-ULF P700 8 4 N N N N

Torque P550 8 4 4 4 4 4 in future

DC resistivity P400 4 4 4 4 4 4

ACT P600 4 4 4 4 4 N

ETO P605 4 4 4 4 4 4

Vertical rotator P305 8 8 8 8 4 N

Horizontal rotator P310 8 4 4 4 8 4

MFP P450 4 4 4 4 4 4

Sample test box P150 4 4 4 4 4 S

Pressure cell HPC 4 4 4 4 4 4

PPMS-SPM 4 4 4 4 4 4 in future

Helium-3 P825 4 4 4 4 4 4 ~spring 2014

Dilution refrigerator P850 4 4 4 4 4 4 ~spring 2014

Large dewar P925 4 4 S S N N

Reliquefier P960 4 4 4 4 N N

EverCool-2 P935 4 4 N N N N

Description4 Available * For details

please refer to the PPMS-DynaCool brochure

8 Possible but not a recommended combination

N Not compatible

S Included in the base system

PPMS multi function probe