X-Ray Topography of Magnetic Domains in Iron Whisker Crystals
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概要
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Magnetic domains in well annealed [001] whisker crystals have been studied by X-ray topography. The three-dimensional shape of the rectangular domain observed by the powder pattern technique was found to be a cuboid. Qualitative explanation is given to the image contrast of 90° domain walls by the dynamical theory of X-ray diffraction in distorted crystals. The lattice distortion around the line of intersection of 90° and 180° domain walls was determined by the analysis of butterfly images. It was also found that the 180° domain wall is made visible by the application of magnetic field. Fringe patterns appeared when the whiskers took the closure domain structure across the axis and also were elastically bent to produce the serrated domain wall. Dynamical calculation proves that they are the moire fringes produced by the double diffraction in the adjacent domains. Some observations about whisker tips and kinked whiskers are also described.
- 社団法人日本物理学会の論文
- 1971-02-05
著者
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NAGAKURA Sigemaro
Department of Mechanical Engineering, The Technological University of Nagaoka
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Chikaura Yoshinori
Department Of Metallurgy Tokyo Institute Of Techonology
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Chikaura Yoshinori
Department Of Applied Science For Integrated System Engineering Graduate School Of Engineering Kyush
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Nagakura Sigemaro
Department Of Metallurgy Tokyo Institute Of Techonology
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