Hall bar measurement system

• Model (M91 FastHall) and company (Lake Shore), Location (Device Room 2)

 Superuser (Xingjuan Song), contacts (15527359929/wechat ID: juan921217826)

• Brief description: 

  A Hall-bar measurement system is an integrated platform for determining carrier transport properties such as resistivity, Hall coefficient, mobility, and carrier concentration using Hall bar and van der Pauw sample geometries, under controlled current, voltage, temperature, and magnetic field conditions.

• Specifications: 

    - Cooling Mechanism: Closed-cycle cryocooler

    - Temperature Range: 10 K – 470 K

    - Temperature Control Stability: ≤±50 mK @ 10 K – 470 K

    - Maximum Magnetic Field: ≥ ±2.5 T

    - Max Measurable Resistance (Hall Test): ≥ 100 GΩ

    - Hall Effect Measurement Time: ≤ 10 s

    - Current source range: 1 μA to 100 mA

    - Voltage measurement range: 1 mV to 10 V;

    - Mobility measurement: down to ~0.001 cm²/(V·s)

    - Carrier concentration measurement range:8~800×10²³ cm³