paper

A beginner's guide to the modern theory of polarization

arXiv:1202.1831 · doi:10.1016/j.jssc.2012.05.010

Abstract

The so-called {\it Modern Theory of Polarization}, which rigorously defines the spontaneous polarization of a period solid and provides a route for its computation in electronic structure codes through the Berry phase, is introduced in a simple qualitative discussion.

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