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Temperature Dependent Spin‐Lattice Relaxation Times for Conduction Electrons in Lithium Particles in n‐Irradiated Lithium Fluoride
Author(s) -
Watts A. J.,
Cousins J. E.
Publication year - 1968
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.19680300113
Subject(s) - lithium fluoride , atmospheric temperature range , lithium (medication) , irradiation , relaxation (psychology) , electron paramagnetic resonance , thermal conduction , condensed matter physics , electron , chemistry , spin–lattice relaxation , range (aeronautics) , materials science , nuclear magnetic resonance , atomic physics , thermodynamics , nuclear physics , physics , inorganic chemistry , medicine , social psychology , psychology , paramagnetism , composite material , endocrinology
Measurements of the conduction electron spin resonance linewidths of Li particles in neutron‐irradiated LiF are presented as a function of temperature and at a frequency of 9.27 GHz. A temperature range of 20 to 500°K was covered, and a genuine reversible temperature dependence of the linewidths was observed. The results are interpreted in terms of a temperature dependent surface relaxation mechanism and a temperature dependent intrinsic one. The latter has a room temperature value of 45 mG which compares favourably with the theoretical prediction of Overhauser. It is shown that the assumptions made for the analysis are compatible with the results of other workers.