Abstract
Absorption spectra of the transition4 I 15/2→4 I 9/2 have been measured in erbium iron garnet (ErIG). From these spectra the exchange tensors for four Kramers dubletts can be obtained. A tentative analysis of these data in terms of a phenomenological exchange Hamiltonian will be presented.
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We thank Drs. P. Levy and G. M. Copland for valuable discussions and for checking the reduced matrix elements. This work was supported by the Deutsche Forschungsgemeinschaft.
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Orlich, E., Hüfner, S. Optical absorption spectra of erbium iron garnet (ErIG). Z. Physik 232, 418–429 (1970). https://doi.org/10.1007/BF01395672
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DOI: https://doi.org/10.1007/BF01395672