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Estimation of the Influence of Lattice Resonant Modes on the Nuclear Quadrupole Spin–Lattice Relaxation
Author(s) -
Mühle E.
Publication year - 1972
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.2220510223
Subject(s) - condensed matter physics , lattice (music) , nuclear quadrupole resonance , quadrupole , spin–lattice relaxation , lattice diffusion coefficient , relaxation (psychology) , crystal structure , materials science , physics , chemistry , atomic physics , effective diffusion coefficient , crystallography , magnetic resonance imaging , medicine , psychology , social psychology , radiology , acoustics
The influence of nonparamagnetic point and line defects in the crystal lattice on the nuclear quadrupole spin‐lattice relaxation is studied. Under the assumption of simple models for defects in a cubic lattice it is shown that lattice resonant modes cause at low temperature an increase of the local relaxation rate around the defects. The efficiency of spin diffusion is estimated. Measurable effects are expected only with relatively high concentrations of defects.