Magnetic Property and Phase Diagram of a Frustrated System with Competing Exchange Interactions, Fe_xMn_<1-x>TiO_3
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概要
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Systematic studies of a random mixture Fe_xMn_<1-x>TiO_3 with competing exchange interactions have been made by low-field dc-magnetization measurements. Typical behavior characterizing a spin-glass transition is observed in the samples with intermediate Fe concentrations. The samples with Fe- and Mn-rich concentrations undergo the transition to the antiferromagnetic phase, and the samples with certain concentrations reenter into the reentrant spin-glass phase at low temperatures. From these results, the concentration versus temperature phase diagram is determined. In Fe_xMn_<1-x>TiO_3 the characteristic properties of the spin-glass and reentrant spin-glass appear strongly, that is because Fe_xMn_<1-x>TiO_3 is a magnetically condensed system with strong frustration. The magnetic properties observed in the antiferromagnetic phase of this system have clarified that the spin configuration is quite different from those in ordinary antiferromagnets.
- 社団法人日本物理学会の論文
- 1993-12-15
著者
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Katori Aruga
Institute for Solid State Physics, University of Tokyo
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Ito Atsuko
Department of Pathology, Tsurumi University School of Dental Medicine
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Aruga Katori
Institute for Solid State Physics, University of Tokyo
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Ito Atsuko
Department Of Legal Medicine Toho University School Of Medicine
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Ito Atsuko
Department Of Physics Fculty Of Science Ochanomizu University
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Ito A
Department Of Physics Ochanomizu University:(present)the Institute Of Physical And Chemical Research
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Ito Atsuko
Department Of Physics Faculty Of Science Ochanomizu University
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Aruga Katori
Institute For Solid State Physics The University Of Tokyo:(present)the Institute Of Physical And Che
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Ito A
Department Of Physics Faculty Of Science Ochanomizu University
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Ito Atsuko
Department Of Legal Medicine School Of Medicine Toho University
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Katori Aruga
Institute For Solid State Physics University Of Tokyo
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