Raman Spectroscopic Study of the Structural Phase Transitions in K 2 SnCl 6 | Zendy

Pelzl J. | Zendy; Engels P. | Zendy; Florian R. | Zendy

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Raman Spectroscopic Study of the Structural Phase Transitions in K 2 SnCl 6

Author(s) -

Pelzl J.,

Engels P.,

Florian R.

Publication year - 1977

Publication title -

physica status solidi (b)

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.51

H-Index - 109

eISSN - 1521-3951

pISSN - 0370-1972

DOI - 10.1002/pssb.2220820114

Subject(s) - raman spectroscopy , monoclinic crystal system , phase transition , phase (matter) , atmospheric temperature range , spectral line , materials science , soft modes , phase boundary , crystallography , chemistry , optics , crystal structure , condensed matter physics , physics , thermodynamics , optoelectronics , organic chemistry , astronomy , ferroelectricity , dielectric

Raman spectra of K 2 SnC1 6 are investigated in the temperature range between 50 and 300 K. The observed low temperature spectra are compatible with the proposed monoclinic structure. Two bands that exhibit a soft behaviour are assigned to a zone center and zone boundary rotational mode, respectively. It is supposed that these modes drive the structural phase transitions at T 1 = 263 K and T 2 = 255 K.

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