TET9000 Hall Effect Measurement System

Profile 

TET9000 series electrical transport property measurement system is a fully automated test system integrating Hall effect, magnetoresistance, variable temperature resistance, I-V characteristics and other tests. The system takes into account the integration, shielding anti-interference ability, test circuit and sample resistance range matching and other issues often overlooked by users. Selected Keithley's electrical measurement instruments, magnetic field according to user needs to use electromagnets or liquid helium-free superconducting magnets, equipped with a dexterous measurement sample rod and rapid insertion and removal of sample cards, coupled with the full automation of the special test software, the operation is more humanized, allowing users to quickly and easily conduct electrical transport test, and obtain accurate and reliable data.

In addition, the ET9000 series of transport properties measurement system has a variety of high and low temperature environment options, is a powerful tool for researchers to study the transport properties of materials.

Functions

Measurements of Hall effect, R-H characteristics, R-T characteristics and I-V characteristics (resistivity) can be performed;

Parameters can be derived: square resistance, resistivity, Hall coefficient, Hall mobility, carrier concentration and conductivity type;

The variation of the above parameters with temperature or magnetic field can be plotted, as well as

I-V characteristics - I-V characteristic curves for different magnetic fields and different temperatures;

R-H characteristics - fixed temperature, the characteristic curve of resistance changes with magnetic field;

R-T characteristic - the characteristic curve of resistance change with temperature for fixed magnetic field.

Key Features

Resistivity, Hall coefficient and Hall mobility testing in accordance with ASTM-F76 standards;

Wide resistance measurement range: 100nΩ (low resistance option) ~ 100GΩ (high resistance system);

The use of plug-in sample card, sample installation is convenient, while providing four-probe card, to a certain extent, to eliminate the trouble of making electrodes;

The standard system can measure 2 samples simultaneously at one time, and 4 samples can be measured simultaneously by adding the option;

Measurement and calculation process is automatically executed by the software, a Hall effect data can be obtained in 3 minutes;

Providing a long time high stability of the magnetic field, 24 hours stability < ± 0.5G, and the magnetic field can be smooth over zero;

The solenoid power supply has a built-in Gaussmeter, and the magnetic field can be controlled within 0.1G from 0 to 1kG in only 20S;

Select the temperature option, you can carry out the Hall effect and resistance measurement under different temperatures.

Specifications

Note: 

In the above three selection tables, under the assumptions of sample thickness of 100 nm, magnetic field size of 10,000 gauss, and a correction factor of 1, the accuracy of resistance testing is 2%, and the accuracy of resistivity, Hall coefficient, carrier concentration, and mobility testing is 5%.

Optional Components

Liquid helium-free superconducting magnetic field cryogenic platform: CFMS series produced by UK Cryogenic Company, with magnetic field range of 5T~18T and temperature range of 1.6K~400K.

Temperature options: liquid nitrogen cartridge, liquid nitrogen thermostat, closed-cycle thermostat, high-temperature furnace.

Optical options: polar head pole with optical path, light shielding box.

Other options: rotating mechanism, vacuum pump, circulating water cooling unit.