Bulk Carrier Concentration, Sheet Carrier Concentration, Mobility, Resistivity, Hall Coefficient, Magnetoresistance, and other important parameters.

Hall Effect Measurement System

The essence of the Hall effect: When the carriers in the solid material move in the applied magnetic field, the trajectory shifts due to the Lorentz force, and charge accumulation occurs on both sides of the material, forming an electric field perpendicular to the current direction; Finally, the Lorentz force of the carrier is balanced with the electric field repulsion, thus establishing a stable potential difference on both sides, that namely the Hall voltage.

The experimental results of the Dexinmag series Hall effect test systems are automatically calculated by the software at the same time, such as Bulk Carrier Concentration, Sheet Carrier Concentration, Mobility, Resistivity, Hall Coefficient, Magnetoresistance, and other important parameters.

High And Low Temperature Hall Effect Test System

Parameters of Hall effect test systems:

Physical parameters	Carrier concentration	10³cm⁻³ - 10²³cm⁻³
	Mobility	0 .1 cm²/ voltsec - 10⁸cm²/ voltsec
	Resistivity range	10⁻⁷ Ohmcm - 10¹² Ohmcm
	Hall voltage	1 uV - 3V
	Hall coefficient	10⁻⁵ - 10²⁷cm³/ C
Testable material type	Semiconductor material	SiGe, SiC, InAs, InGaAs, InP,AlGaAs, HgCdTe and ferrite materials etc.
	low resistance material	Graphene, metals, transparent oxides, weakly magnetic semiconductor materials, TMR materials, etc.
	high resistance material	Semi-insulating GaAs, GaN, CdTe, etc.
	Material Conductive Particles	Type P and Type N testing of materials
Electrical parameters	Current source	50.00nA- 50.00mA
	Current source resolution	0.0001uA
	Measuring voltage	0 ~ ±3V
	Voltage measurement resolution	0.0001 mV
Other Accessories	Shading	Extern ally installed light-shielding parts make the test material more stable
	Sample size	Maximum 10mm * 10mm
	Box cabinet	6006001000mm
	Test piece	Hall effect of Institute of Semiconductors, Chinese Academy of Sciences Standard test samples and data: 1 set (Si, Ge, GaAs, lnSb)
	Making ohmic contacts	Electric soldering iron, indium chip, solder, enameled wire, etc.
One-button automatic measurement can be performed without the need for human operation after the test is started
Software can perform I-V curve and BV curve
Set in software for automatic temperature measurement
The experimental results are measured, and the data will be temporarily saved in the software. If long-term storage is required, the data can be exported to an EXCEL table to facilitate later data processing.
Provide the Hall effect standard test samples and data of the Institute of Semiconductors, Chinese Academy of Sciences: 1 set

Test Sample Display for Hall Effect Measurement System

The Hall effect instrument system consists of an electromagnet, electromagnet power supply, high precision constant current source, high precision voltmeter, Hall effect sample holder, high and low-temperature controller, standard sample, and system software.

The components of Hall Effect Measurement System

Magnetic field environment of DX Hall Effect System

DX-30	NMR series permanent magnet 500mT (The pole pitch is 18mm)
DX-50	Variable electromagnet 1070mT (The pole pitch is 10mm) 687mT (The pole pitch is 20mm) 500mT (The pole pitch is 30mm) 378mT (The pole pitch is 40mm) 293mT (The pole pitch is 50mm)
DX-80	Variable electromagnet 2000mT (The pole pitch is 10mm) 1500mT (The pole pitch is 20mm) 1000mT (The pole pitch is 30mm) 800mT (The pole pitch is 40mm)
DX-100	Variable electromagnet 2000mT (The pole pitch is 10mm) 1500mT (The pole pitch is 20mm) 1000mT (The pole pitch is 30mm) 800mT (The pole pitch is 40mm) 600mT (The pole pitch is 40mm) Resolution: 0.1Gs
Uniform area: 1%
The electomagnet of relevant magnetic size can be customized

System model	Test temperature zone	System Test Index
DX-100 High and Low Temperature Hall Effect Test System	80K ~ 500K (high and low temperature, temperature adjustment 0.1K)	Minimum resolution: 0.1GS Sample current: 0.05uA～50mA (adjust 0.1nA) Magnetic field: 2T at 10mm spacing; 1T at 30mm spacing Resistivity range: 10-5～107 Ohmcm Carrier concentration: 103～1023cm-3 Mobility: 0.1～108cm2/voltsec Resistance range: 10m Ohms～6MOhms
DX-100H High-Temperature Hall Effect Test System	300K ～ 500K (high temperature, temperature adjustment 0.1K)
DX-100L Low-Temperature Hall Effect Test System	80K ～ 300K (low temperature, temperature adjustment 0.1K)
DX-200L Low-Temperature Hall Effect Test System	4K ～ 300K (low temperature, temperature adjustment 0.1K)
DX-500 High and Low Temperature Hall Effect Test System	80K ~ 800K (high and low temperature, temperature adjustment 0.1K)
DX-500H High-Temperature Hall Effect Test System	300 K ~ 800 K (high temperature, temperature adjustment 0.1K)

High And Low Temperature selection