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HEMS & LT-AC/DC | Hall Effect Measurement System

HEMS is an integrated hardware and software system designed to measure and analyze the electronic properties of samples.

HEMS & LT-AC/DC | Hall Effect Measurement System

 

Hall Effect Measurement System（HEMS）

 

HEMS is an integrated hardware and software system designed to measure and analyze the electronic properties of samples.

The system design offers the possibility to take measurements under the magnetic field up to 2.5 Tesla with the combination of cryostat, the magnetic field is up to 16T.

At the same time, the system offers the opportunity to take measurements in the range of 3K-1273K with 2 different temperature measuring heads, while it provides an easy assembly of samples related to the probe system that can move in 3 different axes.

NMI – Hall Effect Measurement System (HEMS) device Performs electrical characterization of semiconductor, organic conductor and metal oxide materials. These materials developed with nanotechnology methods are used in the development of chip technology, the development of solar cells, the development of material science, space technology, defense industry.

 

Suitable For

 

GaAS based materials(HEMTs,pHEMTs,HBTs,FETs,MESFETs).InP,InAs,GaN and AIN,Si,Ge,SiC,HgCdTe,ZnO,SiGeMnGaAs,ZnO,infrared applications(LED,laser diodes,detectors),metal oxides,organic,inorganic conductors,ferrites etc.

 

Measurements Indude

 

  • Mobility measurement

  • Charge carrier measurements

  • Resistivity measurements

  • van der Pauw measurements

  • Hallbar measurements

 

Pole Caps

 

  • Adjustable Pole caps

  • 25mm face diameter

  • Continuously adjustable 0-130mm pole gap

  • Larger diameter is optional,50mm,75mm

 

Electromagnet

 

  • ±2.5T@10mm gap with 25mm pole face(configurable)

  • ±35V,±70A Coils

  • Magnetic field>±IT@25mm pole gap

  • High magnetic field strength with large pole separation

  • Suitable for closed cycle cryostat integration3-300K

  • Resistance in series coils:0.5Ω(20℃)

  • Water cooled

 

Chiller

 

  • Closed cycle water cooling

  • Interlocks to coils over temperature

 

NanoMagnetics Gaussmeter

 

  • Magnetic Field Controlled sweeps using integrated Gaussmeter

  • Field calibration with Hallprobes

  • High sensitivity magnetic field measurement

  • Software control of all the parameters

 

Sample Holders:

Spring Loaded Design Option:

 

  • van der Pauw measurement design

  • Four,Six or Eight contact Hall bar measurement design

  • Easy sample mount with spring pin connections

  • 5mmx5 mm sample sizes (larger sizes are optional)

  • Multiple sample mount

 

Sample soldered/bonded Design Option:

 

  • van der Pauw measurement design

  • Four or Six contact Hallbar measurement design

  • Eight contact Hallbar measurement design (optional)

  • 5mmx5mm sample sizes(larger sizes are optional)

  • Multiple(2 off)sample mount

 

Controller & Software

 

  • Keithley Instruments pA/pV sensitivity state of the art SourceMeter

  • Layer by Layer Mobility Analysis using our powerfull Software

  • Labview based fully automated software

  • Magnet&System control with USB/IEEE/Ethernet interface

  • Temperature control option for LT-HT measurements,3-1,300K

  • Field controlled measurements with the Gaussmeter

  • Easy visualized set-ups for van der Pauw and HallBar Measurements

  • Free update of software for lifetime

 

AC HEMS(Optional)

 

  • Frequency:0.1Hz

  • Bmax:0.65T

  • Mobility:10-³cm²/Vs

  • ±0.2K resolution for Low Temperature

  • ±1K resolution for High Temperature

 

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