Magnetic Anisotropy Measurements of CoO Single Crystal
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概要
- 論文の詳細を見る
Torque and susceptibility measurements with well annealed and chemically polished crystals of CoO were made down to 90°K. When cooled through the Neel point of 20℃ with a temperature gradient along one of the cubic principal axes, the crystals yielded torque and susceptibility curves that are attributable to nearly untwinned tetrgonal crystals. The torque amplitude for rotation about the axis of the temperature gradient is very small, while those for rotations about the other two axis are large; the torque does not always vanish in the directions of the principal axes, which means that the antiferromagnetic spin axis is parallel to none of them, as theory predicts. The susceptibility measured along the axis of the temperature gradient decreased with decreasing temperature, while those for the other two axes were nearly constant and equal. These susceptibilities, when extrapolated linearly to absolute zero, agreed with the theoretical values for the single-domain crystal predicted by Tachiki.
- 社団法人日本物理学会の論文
- 1964-11-05
著者
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FUKUOKA Nobuo
Department of Materials Science, University of Osaka Prefecture
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Fukuoka Nobuo
Department Of Physics University Of Osaka Prefecture
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Fukuoka Nobuo
Department Of Materials Science University Of Osaka Prefecture
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Fukuoka Nobuo
Department Of Physics Naniwa University
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KONDOH Hisamoto
Department of Physics, University of Osaka Prefecture
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NAKAZUMI Yoshihide
Nakazumi Crystal Corp.
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UCHDA Enji
Department of Physics, University of Osaka Prefecture
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TAKEDA Tadao
Fuji Titanium Indust. Co., Ltd.,
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NAKAZUMI Yoshihide
Department of Physics, Osaka University
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NAGAMIYA Takeo
Department of Physics, Osaka University
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Nagamiya Takeo
Department Of Physics Faculty Of Science Osaka University
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Uchda Enji
Department Of Physics University Of Osaka Prefecture:(present)osaka Electro-communication University
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Kondoh Hisamoto
Department Of Materials Sience University Of Osaka Prefecture
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Nagamiya Takeo
Department Of Physcis Osaka University
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NAGAMIYA Takeo
Faculty of Engineering Science, Osaka University
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