Tuning of Magnetic Ordering by Y Substitution in Ca_3Co_2O_6(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
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概要
- 論文の詳細を見る
We have studied the magnetic and thermal properties of Y substituted Ca_3Co_2O_6. Ca_3Co_2O_6 exhibits the ferrimagnetic ground state due to ferromagnetic intrachain coupling and antiferromagnetic interchain coupling. As Y substitution increases, which results in variation of the interaction strength of both interchain and intrachain coupling, gradual but unique changes of ground state from ferrimagnetic to nonmagnetic state have been observed in dc susceptibility, isothermal magnetization, heat capacity, and ac susceptibility. Y substitution induces site percolation on Co-O one-dimensional (1D) chain as well as Co two-dimensional (2D) triangular lattice, and site percolation as well as frustration explains experimental results of doped Co-O 1D chain system. The spin configuration of the Y substituted Ca_3Co_2O_6 can be understood by using crystal field splitting model.
- 社団法人日本物理学会の論文
- 2005-08-15
著者
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Kim C.
Department Of Electrical Engineering College Of Engineering The University Of Seoul
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PARK S.
Korea Research Institute of Standards & Science
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Kim K.
Department Of Materials Engineering And Center For Advanced Plasma Surface Technology Sungkyunkwan U
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Kim C.
Department Of Physics Pusan National University
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PAIK Hyun
Department of Polymer Science and Engineering, Pusan National University
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CHO J.
Department of Physics, Pusan National University
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KIM Bog
Department of Physics, Pusan National University
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Park S.
Korea Basic Science Institute
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Kim Bog
Department Of Physics Pusan National University
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Cho J.
Department Of Physics Pusan National University
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Paik Hyun
Department Of Polymer Science And Engineering Pusan National University
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Cho J.
Department Of Chemical Engineering Konkuk University
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Kim C.
Department Of Dermatology College Of Medicine Our Lady Of Mercy Hospital The Catholic University Of
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Kim K.
Department Of Electrical Engineering And Computer Science Korea Advanced Institute Of Science And Te
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Kim K.
Department Of Physics Pusan National University
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Kim K.
Department Of Dental Biomaterials College Of Dentistry Kyungpook National University
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Kim C.
Department Materials Science And Engineering Chungnam National University
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