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Electron paramagnetic resonance of Gd 3+ ion in monocrystal YAl 3 (BO 3 ) 4
Author(s) -
Prokhorov A. D.,
Krygin I. N.,
Prokhorov A. A.,
Chernush L. F.,
Aleshkevich P.,
Dyakonov V.,
Szymczak H.
Publication year - 2009
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.200925027
Subject(s) - electron paramagnetic resonance , ion , trigonal crystal system , crystallography , materials science , paramagnetism , crystal structure , atomic physics , chemistry , nuclear magnetic resonance , condensed matter physics , physics , organic chemistry
Abstract The ground state of Gd 3+ ions substituting for Y 3+ in YAl 3 (BO 3 ) 4 single crystal has been studied by EPR method. Spin Hamiltonian parameters and their signs for Gd 3+ ion in trigonal symmetry ( g z = 1.9893 ± 0.0002, g x = g y = 1.9860 ± 0.0002; $b_2^0 $ = 386.15 ± 0.11; $b_4^0 $ = −12.65 ± 0.07; $b_6^0 $ = 0.35 ± 0.10) were determined. Structural phase transition manifested as a discontinuous change of splitting of spectrum was observed near 157 K.