Mishra, Suresh G. ; Ramakrishnan, T. V. (1985) Fluctuation theory of the specific heat of normal liquid He Physical Review B: Condensed Matter and Materials Physics, 31 (5). pp. 2825-2830. ISSN 1098-0121
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Official URL: http://prb.aps.org/abstract/PRB/v31/i5/p2825_1
Related URL: http://dx.doi.org/10.1103/PhysRevB.31.2825
Abstract
The measured specific heat of normal liquid 3He shows a plateau for 0.15<T<1 K; below 0.15 K and above 1 K, it rises linearly with temperature. However, the slope on the high-temperature side is very much reduced compared with the free-Fermi-gas value. We explain these features through a microscopic, thermal spin- and density-fluctuation model. The plateau is due to spin fluctuations which have a low characteristic energy in 3He. Because of the low compressibility, the density fluctuations are highly suppressed; this leads to a reduced slope for CV(T) for high temperatures.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to The American Physical Society. |
| ID Code: | 40804 |
| Deposited On: | 25 May 2011 11:06 |
| Last Modified: | 25 May 2011 11:06 |
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