Accession Number : AD0618038
Title : ON THE ANISOTROPY OF EXCHANGE IN YTTERBIUM IRON GARNET.
Descriptive Note : Technical rept.,
Corporate Author : PENNSYLVANIA UNIV PHILADELPHIA
Personal Author(s) : Levy,Peter M.
Report Date : JUL 1965
Pagination or Media Count : 1
Abstract : The exchange splittings of the lowest 2F5/2 and 2F7/2 doublets of Yb(3+) in YbIG are evaluated in terms of the exchange potential parameters as given in a previous article. The wave functions of White, and Hutchings and Wolf were used. A good four parameter fit of the experimental exchange splittings is obtained by adopting essentially zero values for the rare-earth-iron exchange interactions that take place through the nearest neighbor oxygen ions. The chief result of this analysis is that the rare-earth-iron exchange interaction takes place primarily through the next-nearest neighbor oxygens (2.43A); the nearest neighbor oxygens (2.37A) are comparatively inert. (Author)
Descriptors : (*ION EXCHANGE, YTTERBIUM), (*ANISOTROPY, GARNET), (*GARNET, IRON), EXCHANGE REACTIONS, ATOMIC ENERGY LEVELS, CRYSTAL LATTICES, POTENTIAL THEORY
Distribution Statement : APPROVED FOR PUBLIC RELEASE