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Strain‐modulated electron spin resonance spectra of 3d 5 ions in ZnSe
Author(s) -
Henning J. C. M.,
Boef J. H. Den
Publication year - 1975
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.2220690117
Subject(s) - spectral line , electron paramagnetic resonance , ion , amplitude , modulation (music) , physics , resonance (particle physics) , chemistry , atomic physics , spin (aerodynamics) , harmonic , electron , condensed matter physics , nuclear magnetic resonance , optics , quantum mechanics , acoustics , thermodynamics
Flexural‐strain‐modulated ESR spectra of Mn 2+ and Fe 3+ in ZnSe are reported. A study of the relative phases of the fine structure lines and of the angular dependence of the SMESR amplitudes reveals that first‐harmonic SMESR signals arise mainly through modulation of the off‐diagonal elements (g̃ xz + g̃ zx ) of the tensor g̃. A slight amount of A‐modulation is present in ZnSe:Mn 2+ . Weak quadrature signals are observed in ZnSe:Fe 3+ ; they are attributed to anelastic losses. A second‐harmonic SMESR signal is also present. It arises from second‐order line shifts. The angular dependence of the second‐harmonic signal reveals that, apart from (g̃ xz + g̃ zx ), g̃ zz ‐modulation also plays some part in producing these signals. The component g̃ xx normal to the bending plane, however, is not modulated.