STRUCTURE OF THE SEMIEMPIRICAL RELAXATION OPERATOR IN QUANTUM LIUVILLE EQUATION AT SIMULATION ESR SPECTRA OF Zn-P TWO-SPIN SYSTEM IN Si

摘要

In this paper we prepose to enter the semiempirical relaxation operator (four-index relaxation matrix R_(mjkn)) in Liuville quantum equation at simulation ESR spectra of Zn-P two-spin system in a Si. Introduction of this operator allows us to expand application of Liuville equation to nonequilibrium processes. Particularaly it was made to processes of absorption by Zn-P two-spin system of the superfluous μ-wave quantums at presence of its interaction with Si environment. The semiempirical relaxation operator R_(mjkn) = v_(mj) p_(kn) + p_(mj) v_(kn) contains of transitions requencies v_(mn) and functions overlap p_(mn)in spin system. Imaginary frequencies of transition ±iH_(mn) are replaced on real v_(mn), and discrete δ-function δ_(mn) - on overlap function p_(mn) as result of stochastic interaction paramagnetic Zn-P systems with Si environment and an absorbed μ-wave quantums.