Behavior of diffused planar germanium thermometers at temperatures below 1 K
- 1 August 1983
- journal article
- Published by AIP Publishing in Review of Scientific Instruments
- Vol. 54 (8) , 949-951
- https://doi.org/10.1063/1.1137508
Abstract
The performance of diffused planar germanium thermometers is found to be reliable at temperatures T>90 mK. At lower temperatures performance can be limited by overheating caused by measuring and spurious currents. The heating is associated with a thermal impedance Z∝T−4 which is larger than that found in typical bulk germanium thermometers. Surprisingly, Z is found to be essentially independent of the size of the planar resistor.Keywords
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