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Slow Relaxation of Bose Qusiparticless on Multilevel Systems
Author(s) -
Safonov V. L.,
Farzetdinova R. M.
Publication year - 1991
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.2221630126
Subject(s) - spins , relaxation (psychology) , condensed matter physics , magnon , quasiparticle , equidistant , physics , phonon , impurity , nonlinear system , lattice (music) , chemistry , quantum mechanics , superconductivity , ferromagnetism , mathematics , psychology , social psychology , geometry , acoustics
A complete microscopic theory is developed for the slow linear and nonlinear relaxation of Bose‐quasiparticles on multilevel equidistant quantum systems in solids. The expressions obtained have general forms and can be used for the determination of the relaxation of the relaxation rate for magnons, phonons, and other elementary excitations in crystals, which contain impurities and defects with an internal structure. It is shown that a process of slow relaxation can influence the spin‐lattice relaxation rate of the nuclear spins of host atoms.