Contactless technique for thermal conductivity measurement at very low temperature
作者： H.-Y. Hao , M. Neumann , C. Enss , A. Fleischmann
DOI: 10.1063/1.1777408
关键词:
摘要: We present a low-temperature thermal conductivity measurement, which requires no electrical wire in contact with the sample. The temperature gradient sample is generated via optical heating and detected by two magnetization thermometers inductively coupled dc-SQUID readouts. parasitic heat leak power dissipation of setup can be arranged to below 10−15 W. Therefore this contact-free method well-suited for measuring samples very small conductiviy at low temperature. results BK7 glass a-SiO2 down 5.3 mK.
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