Hall Cofficient of Semiconductor with Measurement of Hall Angle

Hall Probe (InAs – Hall Element), Hall Effect Setup with Digital Milli Voltmeter and constant Current probe power supply, 10 Kilo Gauss Electromagnet with power Supply, Digital Gauss meter and other Accessories i.e. Ge-Crystal ‘n’ & ‘p’ Type with their holder & stand

Four Probe Method and Determination of Energy Gap with Temperature

Set up consist of:
Four Probe Digital Power Supply with Built-in Oven Digital Voltmeter and a Constant Current Generator having 4 Digit LCD display for Simultaneous Measurement of Voltage, Current and Temperature.
Oven: Temperature Range: Ambient to 523K. / 250 Degree Centigrade
Oven Mains Operated 230/220V AC, 50Hz.
Digital Voltmeter Specifications: Range: ± 0-2.000 V, Resolution: ± 100µV
Accuracy: + 0.1% of Reading + 1 Digit 4 Digit LCD Display
Overload Indicator
Constant Current Source:
Current Range 0-20mA, Resolution 10 µA 4 Digit LCD Display Open circuit Voltage: 20V
Probe Arrangement: Four Individually Spring Loaded, Collinear and Equally Spaced Probes Mounted in a Teflon Bush, Crystal Fitted with Adjustable Arrangement for Crystal fitting.

E/M METHOD

Hall Effect Apparatus

Hall Effect set up having with Electromagnet with Digital Power Supply for Electromagnet, Digital Gauss Meter Hall Probe, n-type & p-type Ge-Crystal probe & Sample Holder.Provided with Digital Constant Current Source with Digital Milli Voltmeter.

Specifications:
Digital Millivoltmeter : 3 –1/2 Digits – 0-200mV digital Display. Accuracy : + 0.1% of reading + digit with Overload indication Constant Current Source : 0-20mA (Current) digital. Accuracy : + 0.2% of reading + 1digit Load regulation : 0.03% for 0 to full load It has Switch for reversal of Current Direction Electromagnet : 5K, 7.5K Or 10K Gauss at 100 mm – switch for filed reversal, any model on demand available. Power Supply : Fitted with filed intensity, digital power supply. Digital Gauss Meter : With Hall Probe Range : 0-5K, 7.5K, 10K or more Gauss with range selector All model available. Resolution : 0.1 Gauss at 0-2K gauss +. Accuracy : 0.5%