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Electric Field Induced Splitting of the Stretching Vibration Lines of SH − , SeH − , and TeH − Centres in Alkali Halides
Author(s) -
Otto J.
Publication year - 1989
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.2221510141
Subject(s) - halide , alkali metal , electric field , polarization (electrochemistry) , chemistry , atomic physics , field (mathematics) , analytical chemistry (journal) , physics , inorganic chemistry , organic chemistry , quantum mechanics , mathematics , chromatography , pure mathematics
The stretching vibration lines of SH − , SeH − , and TeH − centres in various alkali halides are split into several components by an external electric field. No similar effects are observed yet for other centres. The splitting patterns are measured with high instrumental resolution for various directions of field and light polarization. From the number of componental lines the orientations turn out to be 〈111〉 for all investigated centres. Possible reasons for the splitting are discussed. Paraelectric alignment, however, well known for the homologeous OH − centres, is not observed.