Magnetic and Optical Studies of Structure of Co-Doped Bismuth-Iron-Garnet

T. Okuda; N. Adachi; H. Ohsato; Y. Katoh; T. Mima

doi:doi:10.1051/jp4:19971289

Numéro		J. Phys. IV France Volume 07, Numéro C1, Mars 1997 7th INTERNATIONAL CONFERENCE ON FERRITES


Page(s)		C1-711 - C1-712
DOI		https://doi.org/10.1051/jp4:19971289

7th INTERNATIONAL CONFERENCE ON FERRITES

J. Phys. IV France 07 (1997) C1-711-C1-712
DOI: 10.1051/jp4:19971289

Magnetic and Optical Studies of Structure of Co-Doped Bismuth-Iron-Garnet

T. Okuda, N. Adachi, H. Ohsato, Y. Katoh and T. Mima

Section of Inorganic Materials, Department of Materials Science and Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya, 466, Japan

Abstract
Using an alternating reactive ion beam sputtering technique, Co ion was doped in epitaxially growing Bi₃Fe₅O₁₂ garnet film. The intense enhancement of magnetization, coercivity, and optical absorption at 633nm was observed. The Faraday hysteresis loop for slightly Co-doped film showed anomalous behavior. Those phenomena can be understood considering the composite film structure in which fine particles of Co_3-xFe_xO₄ spinel are embedded in epitaxially grown Bi₃Fe₅O₁₂.