Characteristics of a generalized susceptibility for the analysis of lineshapes of Raman spectra | Zendy

Takagi Yasunari | Zendy; Shigenari Takeshi | Zendy

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Characteristics of a generalized susceptibility for the analysis of lineshapes of Raman spectra

Author(s) -

Takagi Yasunari,

Shigenari Takeshi

Publication year - 1981

Publication title -

journal of raman spectroscopy

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.748

H-Index - 110

eISSN - 1097-4555

pISSN - 0377-0486

DOI - 10.1002/jrs.1250100130

Subject(s) - raman spectroscopy , phonon , condensed matter physics , spectral line , debye , ising model , transverse field , phase (matter) , physics , field (mathematics) , normal mode , chemistry , quantum mechanics , vibration , mathematics , pure mathematics

The characteristics of the generalized Van Vleck‐Weisskopf–Fröhlich type susceptibility (GVWF) are discussed. It is shown that the GVWF can represent both an oscillator type and a relaxational (Debye) type of phonon mode, usually adopted in the analysis of Raman spectra of soft modes in structural phase transitions. It is also shown that a susceptibility for a Ising‐spin system in a transverse field has a close resemblance to the GVWF.

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