Raman Study of Para-Azoxydianisole at the Phase Transitions
作者： Nabil M. Amer , Y. R. Shen , H. Rosen
DOI: 10.1103/PHYSREVLETT.24.718
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摘要: Raman scattering was used to probe the phase transitions of nematic liquid-crystalline material, $p$-azoxydianisole. The intensities several modes were shown change abruptly at transitions, but no detectable frequency shift any mode observed. Our results suggest that spectrum $p$-axoxydianisole is only affected by short-range ordering. Qualitative interpretation given.
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