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Spin‐Lattice Relaxation in Fe 3+ ‐Doped Andalusite Crystals I. Relaxation Mechanisms
Author(s) -
Korolev V. D.,
Peskovatskii S. A.,
Shulga V. M.
Publication year - 1977
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.2220820127
Subject(s) - andalusite , relaxation (psychology) , doping , condensed matter physics , atmospheric temperature range , spin–lattice relaxation , materials science , ion , lattice (music) , range (aeronautics) , chemistry , physics , thermodynamics , petrology , psychology , social psychology , paramagnetism , organic chemistry , metamorphism , acoustics , geology , composite material
The temperature and concentration dependences of the spin‐lattice relaxation of Fe 3+ ions in natural andalusite crystals are investigated experimentally within the temperature range 0.1 to 4.2 K and concentration range 0.03% to 0.56% at a frequency of 9.2 GHz. Relaxation mechanisms are determined. At very low temperatures the effects of phonon bottleneck are observed.