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The Diffusion in the Exciton System and the Nonconservation of Excitons
Author(s) -
Davidovićristovski G. S.,
Ristovski Lj. M.,
Tošić B. S.
Publication year - 1982
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.2221130129
Subject(s) - diffusion , exciton , diffusion process , physics , statistical physics , simple (philosophy) , crystal (programming language) , condensed matter physics , chemistry , chemical physics , quantum mechanics , computer science , innovation diffusion , knowledge management , philosophy , epistemology , programming language
The diffusion of excitions is considered in systems in which the number of excitons is not conserved. It is shown that in such a system stationary and nonstationary diffusion processes appear, and the corresponding diffusion cofficients are defined and calculated for a simple cubic crystal in the two level approximation. The results obtained show that in this system a nonstationary diffusion process is dominant, and that both diffusion processes are caused by nonconservation effects.