ezHEMS
Hall Effect Measurement System
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Technical Specifications
- Resistivity Measurement Range:10-4 to 109 Ω-cm (sample dependent)
- Mobility:1 to 107 cm2 / Volt-sec (sample dependent)
- Concentration: 107 to 1021 per cm3 (sample dependent)
- Current Source: ±2 nA to ±20 mA, ±12 V compliance
- Minimum Hall voltage measurable: 0.1 μV
- Supports Van der Pauw as well as Hall bar shaped samples
- Magnetic Field: 0.6 Tesla or 1 Tesla permanent magnet
- 80-750K(±5%) temperature range with ±0.2 K resolution.Entire temperature range in a single system.
- Higher ranges are optional
- Pt-100 resistance thermometer, 750 K heater and PID temperature controller
- Computer control through USB interface
- Samples sizes from 5x5 mm to 15 mm x 15 mm & with thi ckness < 2 mm
- Automated movement of magnets controlled by ezHEMS Control Software
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The ezHEMS Measurement System Software Capabilities
- Enables data logging and plotting of different measured quantities; I-V curve, resistance, resistivity, sheet resistance, magnetoresistance, carrier conc., Hall mobility, Hall coefficient etc. as a function of sample temperature
- Provides the measured data in tabular form
- LabVIEW™ drivers
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