Publication
Physical Review Letters
Paper

Optical Kerr effect, susceptibility, and order parameter of plastic succinonitrile

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Abstract

The high-frequency electro-optic tensor of succinonitrile is measured throughout the plastic crystalline phase. Its strength, due to cooperative molecular response to the orienting optical field, is a generalized susceptibility increasing rapidly near the plastic-solid transition. Its anisotropy describes long-range cubic order of the average molecular orientation. This orientational order parameter decreases rapidly near the plastic-liquid transition, suggesting that the hitherto neglected average orientational order is essential to the plastic phase stability. © 1974 The American Physical Society.

Date

28 Jan 1974

Publication

Physical Review Letters

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