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Temperature Variation of EPR Linewidth of Gd 3+ and Estimation of Spin–Lattice Relaxation Time of Nd 3+ in NdF 3 Single Crystals
Author(s) -
Korczak W.,
Paradowski M. L.,
Misiak L. E.
Publication year - 1991
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.2221650116
Subject(s) - electron paramagnetic resonance , ion , laser linewidth , atmospheric temperature range , condensed matter physics , doping , chemistry , paramagnetism , spin–lattice relaxation , relaxation (psychology) , lattice (music) , materials science , nuclear magnetic resonance , physics , thermodynamics , optics , psychology , social psychology , organic chemistry , laser , acoustics
EPR (X‐band) linewidths of the Gd 3+ ion in NdF 3 and LaF 3 single crystals in the temperature range 140 to 510 K are investigated. The mechanism of spin–lattice modulated narrowing is adapted to explain the temperature dependence of the Gd 3+ EPR linewidths in the presence of the Kramers host Nd 3+ ions (4f 3 , 4 I 9/2 ). The spin–lattice relaxation time (τ′ 1 ) of the host ions Nd 3+ in Gd 3+ ‐doped NdF 3 single crystal is calculated, using the equation for crystals containing two different species of paramagnetic ions.