Systems Private Limited
DX-3000 Hall Effect Device
This Hall effect machine takes some problems that users often ignore, such as instrument configuration, and circuit wiring (including room temperature and low-temperature wiring) into consideration, and selects the Keithley electrical measuring instruments.
The magnetic field can adopt an electromagnet or liquid helium superconducting magnet based on the user’s requirement, equipped with a smart measurement sample rod, plus a special fully automated test software, allowing users to quickly and easily measure samples and obtain accurate and reliable data. In addition, there are a variety of low-temperature options, and can transform according to the user's existing instrumentation and the special requirements of the software. DX3000 series hall effect measurement system is a powerful tool for the research of materials' electrical transport properties.
Features of DX-3000 Hall Effect Device:
-
Using plug-sample cards, easy to install;
-
One standard configuration can simultaneously measure two samples, and 4 samples can be measured simultaneously by adding optional devices;
-
Resistance measurement range: 0.1mΩ～100GΩ(High voltage and impedance system);
-
Different Hall effect and resistance measurements under different current and magnetic fields;
-
Testing and calculation processes are performed automatically by the software, which gives the intermediate data and the curve at the same time.It will save you a lot of time;
-
The system provides high stability of the magnetic field for a long time, zero magnetic fields can be smoothed;
-
Electromagnet power supply built-in precision Gauss Meter, high field control speed;
-
Choosing low-temperature devices, Hall effect and resistance measurements can be performed at different temperatures.
Testable material of the Hall effect machines:
-
Semiconductor materials: SiGe, SiC, InAs, InGaAs, InP, AlGaAs, HgCdTe and Ferrite materials, etc.
-
Low impedance material: metal, transparent oxide, weak magnetic semiconductor materials, TMR materials, etc.
-
High impedance material: semi-insulating GaAs, GaN, CdTe, etc.
Basic function of DX-3000 Hall Effect Device:
-
Measurement of Hall Effect, magnetic resistance, curves of I-V and R-T;
-
Parameters to be measured: Hall Effect- sheet resistance, resistivity, Hall coefficient, conductivity type, Hall mobility, carrier concentration;
-
Magnetic resistance effect: R, △R, (△R/R)%, (△R/R0)%;
-
I-V curve: I-V curves at different temperatures and magnetic fields;
-
R-T curve: Under a fixed magnetic field, the curves for resistance change at different temperatures;
-
R-H curve: Under fixed temperature, the curves for resistance change at different magnetic fields.
Main Configuration
U.S. Keithley equipment
Magnetic parts
Low temperature portion (optional)
Sample measurement method
-
Hall effect samples: Si, GaAs, etc;
-
Resistance and I-V samples: 4-wire or 6-wire method.
Main technical indexes:
Sample size
-
Small size sample card: 12*12 mm2;
-
Large size sample card: 50*50 mm2;
-
Probe sample card: 1×1mm2～30×30mm2.