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

A.A. Lundin and V.E. Zobov

Physica A: Statistical Mechanics and its Applications, 1982, vol. 115, issue 1, 185-199

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.

Date: 1982
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:115:y:1982:i:1:p:185-199

DOI: 10.1016/0378-4371(82)90135-2

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