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The role of reservoirs of dipole‐dipole interactions in cross‐relaxation
Author(s) -
Skrebnev V. A.
Publication year - 1973
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.2220600104
Subject(s) - zeeman effect , spins , dipole , relaxation (psychology) , condensed matter physics , inverse , magnetic dipole , lattice vibration , physics , magnetic field , quantum mechanics , mathematics , psychology , social psychology , geometry , phonon
The possibility of introducing a reservoir of interactions responsible for cross‐relaxation with the inverse temperature β cr is considered for magnetic samples containing two kinds of spins. It is shown that, despite the nonsecular character of such interaction, the rate of the change of temperature β −1 cr can be much smaller than the rate of establishment of equilibrium in the various magnetic sub‐systems of a sample. Solutions of the equations for inverse temperatures of the magnetic sub‐systems are given in the case of a strong coupling with lattice vibrations of one of the Zeeman reservoirs. A comparison with experiment has been carried out.