Magnetic Properties of Synthetic Single Crystal of αFe_2O_3
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概要
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Synthetic single crystals were grown by the flux method. It was confirmed that the weak ferromagnetic moment appears only when the spins lie in the (111) plane. Contrary to the case of polycrystallines specimens, recovery of the residual magnetization or the memory phenomenon is not observed. It was found, below the transition temperature, a very small amount of the residual magnetic moment along the direction of the field during cooling. Microwave (36,000 MC/sec) resonance studies found a very small six-fold anisotropy (K_h=0.09erg/gr.) in the (111) plane. The resonance line was easily broadened by stresses applied on the crystals. A reasonable agreement is obtained with the data of microwave studies by Abe et al., after taking into account the effect of magnetoelastic coupling. It is suggested that internal strains may inducea dominant uniaxial anisotropy in the (111) plane in polycrystals through their magnetoelastic coupling.
- 社団法人日本物理学会の論文
- 1963-08-05
著者
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Tasaki Akira
Department Of Physics Faculty Of Science University Of Tokyo
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Iida Shuichi
Department Of Physics Faculty Of Science The University Of Tokyo
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Tasaki Akira
Department Of Material Physics Faculty Of Engineering Science Osaka University
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Iida Shuichi
Department Of Physics Faculity Of Science University Of Tokyo
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Tasaki A.
Department of Physics, Faculty of Science, University of Tokyo
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