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Faraday effect in a single magnetic sublattice garnet Ca3Fe2Ge3O12

Authors
Journal
Solid State Communications
0038-1098
Publisher
Elsevier
Publication Date
Volume
90
Issue
2
Identifiers
DOI: 10.1016/0038-1098(94)90943-1
Disciplines
  • Physics

Abstract

Abstract The dispersion of the Faraday rotation and MCD were investigated in the antiferromagnetic garnet Ca 3Fe 2Ge 3O 12 in the wavelength region from 0.4 to 0.8 μm and at temperatures between 7 and 300 K. The temperature dependences were observed to obey the Curie-Weiss law in the paramagnetic region above T N = 12.2 K. The one-ion model enabled us to determine the individual contributions to the Faraday rotation originating from the octahedral Fe 3+ ions. The diamagnetic contribution plays the dominant role being several orders of magnitude higher than the other ones.

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