Magnetic Torque Study of a Weak Ferromagnet NiS_2
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概要
- 論文の詳細を見る
Magnetic torque curves were measured on a NiS_2 single crystal from 4.2 K up to T_c (30 K). The ordinary torque curve shows a large rotational hysteresis. The hysteresis decreases monotonically with increasing temperature and vanishes at T_c. With the use of magnetic annealing technique, the followings are concluded. (1) The easy axis for the weak ferromagnetic (WF) moment is the <100> axis, and even the magnetic field as strong as 21 kG cannot rotate the direction of the WF moment away from the axis. (2) However, the net magnetization can rotate mainly through 90°-wall displacements. The observed rotational hysteresis is due to the irreversibility of the wall displacements. (3) A single domain state for WF moment can be obtained by magnetic annealing along <100>. (4) It is inferred, from the estimation of the effective anisotropy constant, that the weak ferromagnetism of NiS_2 must be one of its intrinsic properties.
- 社団法人応用物理学会の論文
- 1976-08-05
著者
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Nagata Hideo
Department Of Physics Faculty Of Science Hokkaido University
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Miyadai Tomonao
Department Of Physics Faculty Of Science Hokkaido University
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Nagata H
Department Of Chemical And Biological Engineering Sasebo National College Of Technology
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Miyadai Tomonao
Department Of Physics Faculity Of Science Hokkaido University
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Nagata Hideo
Department of Chemical and Biological Engineering, Sasebo National College of Technology
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