Patrick Simon, François Gervais, et al.
Physical Review B
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.
Patrick Simon, François Gervais, et al.
Physical Review B
René Vacher, Thierry Woignier, et al.
Physical Review B
Eric Courtens, Rene Vacher
Philosophical Magazine B: Physics of Condensed Matter; Statistical Mechanics, Electronic, Optical and Magnetic Properties
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Journal of Physics C: Solid State Physics