Low-temperature thermal expansion and specific heat of KCl containing Li tunneling states
- 15 March 1986
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 33 (6) , 4172-4177
- https://doi.org/10.1103/physrevb.33.4172
Abstract
Thermal-expansion coefficients and specific heats have been measured in the temperature range 0.1–10 K for KCl crystals containing less than 200 ppm or . The tunneling states associated with isolated Li ions give rise to a Grüneisen parameter of which is isotropic and independent of temperature or of Li isotope.
Keywords
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