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Origin of second-harmonic generation in the incommensurate phase of K2SeO4

T. A. Aslanyan
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Abstract

We show that a ferroelectric phase transition takes place in the incommensurate phase of the K2SeO4 crystal. The ferroelectric character of the IC phase explains the second-harmonic generation observed in the corresponding temperature range.

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T. A. Aslanyan. 2005-01-28. Origin of second-harmonic generation in the incommensurate phase of K2SeO4. https://doi.org/10.1103/physrevb.70.024102

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