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arXiv · 0811.3656

Ferrotoroidic Moment as a Quantum Geometric Phase

C. D. Batista·G. Ortiz·A. A. Aligia
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Abstract

We present a geometric characterization of the ferrotoroidic moment in terms of a set of Abelian Berry phases. We also introduce a fundamental complex quantity which provides an alternative way to calculate the ferrotoroidic moment and its moments, and is derived from a second order tensor. This geometric framework defines a natural computational approach for density functional and many-body theories.

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C. D. Batista, G. Ortiz, A. A. Aligia. 2008-11-22. Ferrotoroidic Moment as a Quantum Geometric Phase. https://doi.org/10.1103/physrevlett.101.077203

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