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Dynamics and relaxation of the generalized Heisenberg quasi-one-dimensional paramagnet in the external field

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  • Lundin, A.A.
  • Zobov, V.E.

Abstract

Expressions have been obtained to describe the time correlation function for the spin Z-components in a paramagnet with the generalized Heisenberg interaction in a constant magnetic field H, applied along the z-axis. The spin system has been assumed to be nonequilibrium: there is an excessive initial polarization along the z-axis. It has been assumed that, at least for rather high H1 fields, the spin system approaches equilibrium in two stages, with the second, cross-relaxation stage proceeding at a rate exponentially dependent on the H1 magnitude. The results obtained are used to explain experiments on nuclear spin-locking in solids.

Suggested Citation

  • Lundin, A.A. & Zobov, V.E., 1982. "Dynamics and relaxation of the generalized Heisenberg quasi-one-dimensional paramagnet in the external field," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 115(1), pages 185-199.
    • Handle: RePEc:eee:phsmap:v:115:y:1982:i:1:p:185-199
    DOI: 10.1016/0378-4371(82)90135-2
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