Magnetic Property of Oxide Passivated Co Nanosized Particles Dispersed in Two Dimensional Plane
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概要
- 論文の詳細を見る
The particle size dependence of Néel temperature was investigated in a thin CoO shell of an oxide passivated Co particle. In addition to the blocking effect of the exchange anisotropy interaction, the influence of the magnetic dipole interaction between neighbouring Co cores to the blocking temperature TB was examined by measuring the zero field cooling magnetic susceptibility in dense oxide passivated nanosized Co particles dispersed uniformly on two dimensional plane without coagulation. The blocking temperature dominated by the dipole-dipole interaction was discussed in relation to the transition temperature to the spin-glass like collective state.
- Physical Society of Japanの論文
- 2001-07-15
著者
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Sakai Masahiro
Research Center For Nano-device And System Nagoya Institute Of Technology:rd Center Ngk Insulators L
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Sako Sanshiro
Department Of Physics Faculty Of Education Mie University
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Ohshima Kazunari
Department Of Physics Matsumoto Dental University
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Sako Sanshiro
Department of Physics, Faculty of Education, Mie University, Tsu 514-0008
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Ohshima Kazunari
Department of Physics, Matsumoto Dental University, Shiojiri 399-0781
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