Abstract
The Curie temperatures, magnetic susceptibilities, and magnetic anisotropies of the following two crystal systems were determined: , with and , with . 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 for Ga-substituted ytterbium iron garnet (YbIG) and up to for Si-Ca-substituted YbIG.
- Received 31 August 1972
DOI:https://doi.org/10.1103/PhysRevB.8.373
©1973 American Physical Society