A method for accurate thermal conductivity measurements of small samples at ultra-low temperatures |
| |
| Authors: | A. Orendá ?ová ,K. Tibenská ,E. ?i?má r,M. Orendá ?,A. Feher |
| |
| Affiliation: | Institute of Physics and Centre of Low Temperature Physics, P.J. Šafárik University, Park Angelinum 9, 041 54 Košice, Slovakia |
| |
| Abstract: | A specific experimental arrangement has been developed for low temperature measurements of thermal conductivity of small samples such as single crystals of magnetic insulators with a typical length of a few millimeters. A frame of low conductance, serving as a mechanical support for ruthenium thermometers recording the temperature gradient on a sample, has been tested in the temperature range from 150 mK to 5 K by using commercial 99.95% purity polycrystalline non-annealed molybdenum. The applicability of the setup is discussed for the samples with the thermal conductance in the range 10−5-10−3 W/K. |
| |
| Keywords: | Molybdenum (A) Thermal conductivity (C) Temperature sensors (D) |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
