Spin-glass approach to low-temperature anomalies in glasses

We discuss a spin-glass-type approach to the physics of structural glasses, which leads to a class of models that exhibit both glassy low-temperature phases and double- and single-well configurations in their potential energy landscape. The low-temperature anomalies characteristic of amorphous syste...

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Hauptverfasser: Horstmann, Uta (VerfasserIn) , Kühn, Reimer (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: 23 April 1999
In: Physica. B, Condensed matter
Year: 1999, Jahrgang: 263/264, Pages: 290-292
ISSN:1873-2135
DOI:10.1016/S0921-4526(98)01473-2
Online-Zugang:Verlag, Volltext: http://dx.doi.org/10.1016/S0921-4526(98)01473-2
Verlag, Volltext: http://www.sciencedirect.com/science/article/pii/S0921452698014732
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Verfasserangaben:Uta Horstmann, Reimer Kühn, Institut für Theoretische Physik, Universität Heidelberg, Philosophenweg 19, 69120 Heidelberg, Germany
Beschreibung
Zusammenfassung:We discuss a spin-glass-type approach to the physics of structural glasses, which leads to a class of models that exhibit both glassy low-temperature phases and double- and single-well configurations in their potential energy landscape. The low-temperature anomalies characteristic of amorphous systems are reproduced, and within our model the universality issue can be illuminated. We consider the interaction between localized excitations and phonons, and we present a general expression for the dynamic susceptibility, from which dynamic properties such as the internal friction can be calculated.
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Beschreibung:Online Resource
ISSN:1873-2135
DOI:10.1016/S0921-4526(98)01473-2