LPE Growth of Bismuth Substituted Iron Garnet Films with in-plane Magnetization(Selected papers from MORIS 2006 Workshop on Thermal & Optical Magnetic Materials and Devices)

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概要

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• We developed high quality Bi substituted Lu iron garnet (Bi,Lu)_3(Fe,Ga)_5O_<12> films with in-plane magnetization to use for magneto-optical imaging (MOI). These films were grown on 1-inch (100) orientated Gd_3Ga_5O_<12> substrates by liquid phase epitaxy (LPE) using PbO-B_2O_3 flux. In particular, in order to reduce defect density in the film, we optimized the melt composition and growth temperature. We could almost remove defects caused by adhesion of fine garnet crystallites by increasing the amount of flux. The in-plane magnetization was obtained by controlling the stress-induced anisotropy caused by the lattice misfit between film and substrate. These high quality Bi garnet films had the Faraday rotation coefficient θF of-690〜-810 deg/mm at 633nm, the saturation magnetization 4⊥M_s of 30mT and the perpendicular saturating field H_s of 120mT at room temperature.

• 社団法人日本磁気学会の論文
• 2006-11-01

著者

• Nakao K.

  Supercnductivity Research Laboratory, ISTEC

• Koshizuka N.

  Supercnductivity Research Laboratory Istec

• Koshizuka N.

  Superconductivity Research Laboratory

• Kono T.

  Superconductivity Research Laboratory

• Machi T.

  Superconductivity Research Laboratory

• Chikumoto N.

  Superconductivity Research Laboratory

• Adachi N.

  Ceramics Research Laboratory, Nagoya Institute of Technology

• Okuda T.

  Department of Material Science and Engineering, Nagoya Institute of Technology

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