Magnetic Properties of Diamagnetic-Substituted Ytterbium Iron Garnet Explained by the Statistical Model of the Molecular Field. III. Curie Temperatures, Magnetic Susceptibilities, and Anisotropy of Si-Ca- and Ga-Substituted Ytterbium Iron Garnet

A. Grill and M. Schieber
Phys. Rev. B 8, 373 – Published 1 July 1973
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Abstract

The Curie temperatures, magnetic susceptibilities, and magnetic anisotropies of the following two crystal systems were determined: Yb2.9xBi0.1CaxFe5xSixO12, with 0<x1.4 and Yb3GaxFe5xO12, with 0<x3.75. Using the statistical-molecular-field model, we succeeded to explain the composition dependence of the Curie temperatures and magnetic anisotropies of the above crystals. It was found that the magnetic susceptibilities of the measured crystals tend to increase with the concentration of diamagnetic ions. This increase could be explained by combining the statistical model and assumptions of Clark and Callen, for concentrations up to x=2.25 for Ga-substituted ytterbium iron garnet (YbIG) and up to x=1.04 for Si-Ca-substituted YbIG.

  • Received 31 August 1972

DOI:https://doi.org/10.1103/PhysRevB.8.373

©1973 American Physical Society

Authors & Affiliations

A. Grill* and M. Schieber

  • The School of Applied Science and Technology, Hebrew University, Jerusalem, Israel

  • *Part of author's Ph.D. thesis. Present address: Institut für Werkstoffe der Elektrotechnik, Ruhr Universität Bochum, West Germany.

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Vol. 8, Iss. 1 — 1 July 1973

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