Ferromagnetic Behavior of (Fe1-yZny)2Mo3O8 (0\leq y\leq 1) Induced by Nonmagnetic Zn Substitution
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概要
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We have systematically investigated the magnetic properties of (Fe1-yZny)2Mo3O8 (0\leq y\leq 1). The ground state of the parent compound, Fe2Mo3O8 (y = 0), is an antiferromagnetic (AFM) insulator. The substitution of magnetic Fe2+ with nonmagnetic Zn2+ gives rise to ferromagnetic (FM) correlation. With increasing y, the FM correlation evolves and becomes the most enhanced with y = 0.5. One of the possible explanations for the origin of the FM behavior is that Zn2+ ions prefer the octahedral oxygen coordination to the tetrahedral one. In addition, the magnetizations when y = 0.125 and 0.25 show a stepwise behavior at low temperatures, implying that several magnetic phases are competing with one another.
- 2011-10-15
著者
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Akahoshi Daisuke
Department Of Physics Sophia University
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Kuwahara Hideki
Department Of Physics Sophia University
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Akaki Mitsuru
Department of Physics, Sophia University, Chiyoda, Tokyo 102-8554, Japan
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Akahoshi Daisuke
Department of Physics, Sophia University, Chiyoda, Tokyo 102-8554, Japan
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Nakayama Shungo
Department of Physics, Sophia University, Chiyoda, Tokyo 102-8554, Japan
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Nakamura Ryouta
Department of Physics, Sophia University, Chiyoda, Tokyo 102-8554, Japan
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