Formation processes and magnetooptic properties of BixY3 - x Fe5O12 - [delta]/Y3Fe5O12 - [delta] heterostructures

• Published in: Metal science and heat treatment Vol. 50; no. 5-6; p. 303
• Main Authors: Gurskii, L I, Kalanda, N A, Yanushkevich, K I, Gudelev, V G, Ges', A P, Krekoten', N A, Telesh, E V
• Format: Journal Article
• Language: English
• Published: New York Springer Nature B.V 01.05.2008
• Subjects: Point defects
• ISSN: 0026-0673; 1573-8973
• DOI: 10.1007/s11041-008-9046-z

Studies have been done on the formation of Bi^sub x^Y^sub 3 - x^Fe^sub 5^O^sub 12 - δ^/Y^sub 3^Fe^sub 5^O^sub 12 - δ^ heterostructures on single-crystal Y^sub 3^Fe^sub 5^O^sub 12 - δ^ substrates on annealing in a medium with varying oxygen contents. The oxygen sorption-desorption spectra have been examined together with the effects of point defects on the magnetooptic properties of these heterostructures. There is a discussion of the evolution of changes in the type and structure of the defects on annealing single-crystal Y^sub 3^Fe^sub 5^O^sub 12 - δ^ substrates and the effects of these on the Faraday rotation. Conditions have been optimized for making homogeneous and structurally perfect diffusion layers of bismuth-substituted yttrium-iron garnet Y^sub 1.2^Bi^sub 1.8^Fe^sub 5^O^sub 12 - δ^.[PUBLICATION ABSTRACT]