Volume 33, Number 8, March II 1996
|Page(s)||617 - 622|
|Section||Condensed matter: structure, thermal and mechanical properties|
|Published online||01 September 2002|
Specific-heat anomaly of amorphous solids at intermediate temperatures (1 to 30 K)
Physikalisches Institut der Universität
Karlsruhe - D-76128 Karlsruhe, Germany
Accepted: 24 January 1996
An analysis of the specific heat C of various amorphous solids at intermediate temperatures (1 K K) shows that the two parameters characterizing the maximum in vs. T , namely its height Pc and position Tmax, are related to each other as . Surprisingly, this relation is valid not only for all the amorphous solids whose intermediate-T specific heat can be found in the literature, but also for many of the corresponding crystalline solids. This suggests a general correlation between the mechanisms leading to the maximum in amorphous and crystalline solids. The established relation, together with the scaling property found earlier, contributes towards a unified understanding of the low- and intermediate-T properties of amorphous solids.
PACS: 65.40.-f – Heat capacity of solids / 63.20.Pw – Localized modes
© EDP Sciences, 1996
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