Low-temperature properties of thin films

B.S. Tos̆ić, J.P. S̆etrajc̆ić, D.Lj. Mirjanić and Z.V. Bundalo

Physica A: Statistical Mechanics and its Applications, 1992, vol. 184, issue 3, 354-366

Abstract: It is shown that phonons in this films, “cut off” from a simple lattice, possess a gap whose magnitude depends upon the thickness of the film. Due to the presence of the gap, the specific heat of the film for T≈ 0 changes approximately as T−1 exp(−const/T). This behaviour of the specific heat can be used for experimental verification of the existence of the phonon gap.

Date: 1992
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:184:y:1992:i:3:p:354-366

DOI: 10.1016/0378-4371(92)90311-D

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