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The Relation between the Orientation of Streamer Discharges and Anisotropy of Thermal Vibrations of Atoms in II‐VI Semiconductors
Author(s) -
Zubritskii V. V.,
Purlys R. P.
Publication year - 1990
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.2221580108
Subject(s) - anisotropy , semiconductor , crystal (programming language) , excitation , impurity , doping , thermal , materials science , condensed matter physics , vibration , orientation (vector space) , lithium (medication) , atomic physics , chemistry , optics , physics , thermodynamics , geometry , optoelectronics , medicine , organic chemistry , mathematics , quantum mechanics , endocrinology , computer science , programming language
For the first time the relationship is established between the thresholds (probabilities) of excitation of streamer discharges and anisotropy of thermal atomic vibrations of crystal lattices in semiconductors. By the example of cadmium sulphide for the first time the temperature dependence of streamer orientation at 294 K is modelled by doping the samples with lithium impurities; the mean‐square dynamic displacements of atoms are measured, and it is shown that the dynamic characteristics of crystal lattices of doped semiconductors cardinally differ from analogous parameters for undoped crystals, but as in purposely undoped samples, their anisotropy determines the temperature dependence of the excitation thresholds of streamers.