9 Molecule and Solid State Physics 9.4 Hall effect
Hall effect in p-germanium with Cobra3
P2530111
Hall voltage as a function of temperature.
Principle The resistivity and Hall voltage of a rectangular germanium sample are measured as a function of temperature and magnetic field. The band spacing, the specific conductivity, the type of charge carrier and the mobility of the charge carriers are determined from the measurements.
Related Experiments Hall effect in p-germanium (with the teslameter) P2530101 Hall effect in n-germanium (with the teslameter)
Tasks The Hall voltage is measured at room temperature and constant magnetic field as a function of the control current and plotted on a graph (measurement without compensation for defect voltage). The voltage across the sample is measured at room temperature and constant control current as a function of the magnetic induction B. The Hall voltage UH is measured as a function of the magnetic induction B, at room temperature. What you can learn about Semiconductor, Band theory, Forbidden zone, Intrinsic conductivity, Extrinsic conductivity, Valence band, Conduction band, Lorentz force, Magnetic resistance, Mobility, Conductivity, Band spacing, Hall coefficient
P2530201 Hall effect in n-germanium (with Cobra3) P2530211 Band gap of germanium P2530401 Band gap of germanium (with Cobra3) P2530411
Main articles Cobra3 BASIC-UNIT, USB Hall effect module Hall effect,p-Ge,carrier board Power supply 0...12 V DC/ 6 V, 12 V AC, 230 V Measuring module, Tesla Hall probe, tangential, protection cap Coil, 600 turns
12150-50 11801-00 11805-01 13505-93 12109-00 13610-02 06514-01
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Cobra4 Experiment - available 2013 Hall effect in p-germanium (with Cobra4) P2530160
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