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arXiv · 0809.1070

Interacting Dipoles in Type-I Clathrates: Why Glass-like though Crystal?

Tsuneyoshi Nakayama·Eiji Kaneshita
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Abstract

Almost identical thermal properties of type-I clathrate compounds to those of glasses follow naturally from the consideration that off-centered guest ions possess electric dipole moments. Local fields from neighbor dipoles create many potential minima in the configuration space. A theoretical analysis based on two-level tunneling states demonstrates that interacting dipoles are a key to quantitatively explain the glass-like behaviors of low-temperature thermal properties of type-I clathrate compounds with off-centered guest ions.From this analysis, we predict the existence of a glass transition.

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Tsuneyoshi Nakayama, Eiji Kaneshita. 2008-09-05. Interacting Dipoles in Type-I Clathrates: Why Glass-like though Crystal?. https://doi.org/10.1209/0295-5075/84/66001

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