Second order Raman spectrum and phase transition in InSe

作者: C. Carlone , S. Jandl

DOI: 10.1016/0038-1098(79)90145-5

关键词: Liquid nitrogenRaman spectroscopyChemistryCondensed matter physicsPhase transitionPhase (matter)Molecular physicsOrder (group theory)

摘要: Abstract The Raman spectrum of InSe was taken at room temperature and liquid nitrogen temperature. We found that the TO (199 cm −1 ) LO (212 modes, together with their overtones combinations 400, 416 423 disappeared lower temperatures. attribute vanishing these modes low temperatures to a change phase from ϵ β polytype.

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