FARADAY ROTATION IN RARE-EARTH IRON GARNETS

被引:238
作者
CROSSLEY, WA
COOPER, RW
PAGE, JL
VANSTAPE.RP
机构
[1] Mullard Research Laboratories, Redhill, Surrey
[2] Philips Research Laboratories, Eindhoven
来源
PHYSICAL REVIEW | 1969年 / 181卷 / 02期
关键词
D O I
10.1103/PhysRev.181.896
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The Faraday rotation of yttrium, gadonlinium, and terbium iron garnets at 1.15 is presented as a function of temperature between 100 and 450°K. The rotation is analyzed in terms of electric and magnetic dipole contributions from the various magnetic sublattices (Fe3+ octahedral, Fe3+ tetrahedral, RE3+), and the contributions are separated by a least-squares fit to magnetization data. The similarities and differences in the electric dipole contributions are discussed, and it is suggested that charge-transfer processes are important. The effect of a knowledge of the electric dipole contributions at 1.15 on published results at longer wavelengths is investigated, and deductions of g factors in this region are shown to be probably in error. In an Appendix, theoretical derivations are given for the form of the electric dipole rotation due to magnetic ions in various circumstances. © 1969 The American Physical Society.
引用
收藏
页码:896 / &
相关论文
共 22 条