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On the nature of excess current oscillations in CdS, CdSe crystals
Author(s) -
Vinetskii V. L.,
Shakhovtsova S. I.,
Konozenko I. D.
Publication year - 1970
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.19700420109
Subject(s) - instability , oscillation (cell signaling) , joule heating , condensed matter physics , crystal (programming language) , electric field , current (fluid) , intensity (physics) , radiation , joule effect , electron , physics , atomic physics , materials science , optics , chemistry , thermodynamics , quantum mechanics , biochemistry , computer science , programming language
An interpretation is given of the earlier described phenomenon of low‐frequency current oscillations induced by light, X‐ and γ‐rays in CdS, CdSe crystals, basing on the instability of a stationary state of the crystal with unequilibrium electron occupation of traps; the instability being caused by Joule's heating. It is shown that in the space of variables E, L, T 0 (electric field, intensity of radiation, temperature of the crystal surface) an instability region exists. The boundaries experimentally found are in good agreement with calculations. The dependences of the oscillation period on E, L , and T 0 are also explained.