On the collective model of glasses at low temperature
Carruzzo, Herve Marc
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Permalink
https://hdl.handle.net/2142/19125
Description
Title
On the collective model of glasses at low temperature
Author(s)
Carruzzo, Herve Marc
Issue Date
1994
Doctoral Committee Chair(s)
Leggett, Anthony J.
Department of Study
Physics
Discipline
Physics
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
Physics, Condensed Matter
Language
eng
Abstract
The universal behavior of insulating glasses at low temperature, compatible with but not explained by the tunnelling two level (TLS) model is reviewed. Recent non-equilibrium dielectric experiments on the capacitance of glasses are analyzed within the framework of the TLS theory. The prediction of this model are shown to be incompatible with the experimental data. The importance of elastic interactions as a possible solution to these problems is emphasised and several simple models are introduced. The question of the importance of interactions at long lengthscale is discussed using a renormalization group approach.
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