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Behaviour of the zero‐field splitting of Gd 3+ at low temperatures
Author(s) -
Koch V.
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.2220470219
Subject(s) - electron paramagnetic resonance , zero field splitting , interpretation (philosophy) , anisotropy , hamiltonian (control theory) , field (mathematics) , condensed matter physics , crystal (programming language) , thermal , physics , chemistry , materials science , nuclear magnetic resonance , thermodynamics , quantum mechanics , mathematics , electron , mathematical optimization , computer science , pure mathematics , programming language , spin polarization
The temperature dependence of crystal field splitting for Gd 3+ in YVO 4 , LuVO 4 , and ScVO 4 has been determined from variable frequency EPR. The crystal field parameters of the corresponding spin Hamiltonian were calculated. The temperature dependence of these parameters was fitted with the hyperbolic cotangent. It is shown that an interpretation of the experimental data obtained for YVO 4 , LuVO 4 , and ScVO 4 in the sense of a dynamic model as proposed by Pfister et al. [1] is not possible. A different interpretation in terms of the anisotropic thermal expansion is suggested.