Structural Studies of Thermal Vibrations in Ferroelectric SbSI | Zendy

Itoh K. | Zendy; Matsunaga H. | Zendy; Nakamura E. | Zendy

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Structural Studies of Thermal Vibrations in Ferroelectric SbSI

Author(s) -

Itoh K.,

Matsunaga H.,

Nakamura E.

Publication year - 1980

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.2220970133

Subject(s) - anharmonicity , soft modes , amplitude , atmospheric temperature range , ferroelectricity , condensed matter physics , thermal , dielectric , atom (system on chip) , materials science , phase transition , phase (matter) , crystal (programming language) , vibration , phonon , range (aeronautics) , chemistry , physics , optics , thermodynamics , optoelectronics , programming language , organic chemistry , quantum mechanics , computer science , composite material , embedded system

The anharmonic atomic potential at 1.3 °C and the temperature dependence of thermal amplitudes in SbSI are calculated from crystal structures previously reported. The contribution of the soft mode to the thermal amplitude is found along the c ‐axis for the Sb atom over a wide temperature range around the transition temperature. The temperature dependence of the frequency of the soft transverse optic mode is estimated in the paraelectric phase up to 100 °C.

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