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Paramagnetic Relaxation and Resonance in Neodymium Ethyl Sulfate
Author(s) -
Kalbfleisch H.,
Smolne W.,
Thomä R.,
Wehrle H.
Publication year - 1971
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.2220460222
Subject(s) - hyperfine structure , neodymium , paramagnetism , impurity , relaxation (psychology) , ion , chemistry , spin–lattice relaxation , atmospheric temperature range , raman spectroscopy , magnetic field , isotope , condensed matter physics , nuclear magnetic resonance , atomic physics , physics , optics , laser , psychology , social psychology , organic chemistry , meteorology , quantum mechanics
Using two different measuring methods the temperature, magnetic field, and angular dependence of the spin‐lattice relaxation time were studied in neodymium ethyl sulfate crystals with natural isotopic abundance of Nd ions and crystals enriched with the isotope 142 Nd. A bottlenecked direct process was found in the low‐temperature range and a Raman process T eff −1 . ∼ T 9 near 4.2 K. The magnetic field dependence is T eff −1∼ H 4 only in the field range above 5 kOe. Cross relaxations in the hyperfine structure and via Ce impurities mask the spin‐lattice relaxation.