Abstract
The theoretical and experimental study of the magnetic moments of Nd3+ ions in aluminium and gallium garnets respectively was performed. The calculation of the field dependence of the magnetic moment of Nd3+ in YAG, based on the complete set of 9 crystal field parameters determined from the analysis of the optical spectra, gives at 4·2 K the anisotropy of the magnetic moment of about 10%. The magnetization curves of Nd3Ga5O12 were measured in static fields up to 46 kOe and found to be anisotropic and lying very near to the theoretical curves for Nd: YAG. The pulse field measurements up to 210 kOe provided no reliable results probably owing to the strong magnetocaloric effect. It is concluded that the crystal field effects are not sufficient to explain the whole magnitude of the anisotropy of magnetization in Nd-Sc-Fe garnet observed in our earlier work.
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The authors wish to thank Mr. P.Pechatý for the growing of the crystals and Mr. J.VanĚk for their careful orientation.
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Nekvasil, V., Roskovec, V., Zounová, F. et al. Anisotropy of the magnetic moment of neodymium in garnets. Czech J Phys 24, 810–821 (1974). https://doi.org/10.1007/BF01795716
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DOI: https://doi.org/10.1007/BF01795716