Temperature Dependence of Optical Absorption near the Structural Phase Transition of Potassium Nitrate | Zendy

Kawashima R. | Zendy; Katsuki K. | Zendy; Suzuki K. | Zendy

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Temperature Dependence of Optical Absorption near the Structural Phase Transition of Potassium Nitrate

Author(s) -

Kawashima R.,

Katsuki K.,

Suzuki K.

Publication year - 1985

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.2221290230

Subject(s) - phase transition , potassium nitrate , spectral line , absorption spectroscopy , dielectric , absorption (acoustics) , potassium , exponential decay , transition point , ultraviolet , crystal (programming language) , lattice constant , lattice (music) , chemistry , phase (matter) , analytical chemistry (journal) , condensed matter physics , materials science , thermodynamics , optics , physics , organic chemistry , chromatography , optoelectronics , astronomy , computer science , nuclear physics , diffraction , acoustics , composite material , programming language

The electronic properties of a KNO 3 crystal near the structural phase transition are investigated by observing ultraviolet absorption spectra. The spectra show an anomalous temperature dependence near the transition point T tr . The anomalous behaviour of the exponential absorption tails in the spectra is observed and discussed phenomenologically in relation to anomalies in the dielectric constant and lattice constant of KNO 3 .

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