A High Impedance ac Hall Effect Apparatus
- 1 March 1970
- journal article
- Published by AIP Publishing in Review of Scientific Instruments
- Vol. 41 (3) , 419-421
- https://doi.org/10.1063/1.1684532
Abstract
Measurement of the Hall effect in oxide crystals of high resistivity has been made possible by the use of a very high impedance ac apparatus. The shunt capacitance of leads degrades the input impedance in such a system. However, this effect is minimized by driving the shield of the coaxial line from a low impedance source with a voltage of the same amplitude and phase as that of the input signal. The frequency is chosen sufficiently high to minimize the effects of space charge.Keywords
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