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Field at the Nucleus and EPR Line Intensities for Ions in Crystals
Author(s) -
Mialhe P.,
Erbeia A.
Publication year - 1973
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.2220570208
Subject(s) - electron paramagnetic resonance , hyperfine structure , ion , nucleus , atomic physics , quantization (signal processing) , spectral line , physics , crystal (programming language) , perturbation (astronomy) , field (mathematics) , magnetic field , molecular physics , nuclear magnetic resonance , quantum mechanics , mathematics , algorithm , computer science , pure mathematics , biology , programming language , microbiology and biotechnology
The determination of the intensity of hyperfine lines in an EPR spectrum of ions in a crystal field with axial symmetry is discussed. Expressions are obtained for the magnetic field seen by the nucleus. It is taken as nuclear quantization axis and then the angular variations of line intensities are computed in a first order perturbation approximation and found in good agreement with experimental results on Mn 2+ –Al 2 0 3 EPR spectra. Those results are compared with the descriptions given by the method of Bir and by calculations involving the identification of electronic and nuclear quantization axes.