Synthesis and Magnetic Property of Multiferroic BiMnO3 Nanoparticles in the Pores of Mesoporous Silica
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概要
- 論文の詳細を見る
The mesoporous silica material SBA-15 was prepared with control pore size for use as a nanoparticle synthesis template. The X-ray diffraction results show that the nanopores were ordered in a hexagonal structure. The pore size was controlled by the synthesis conditions. Nanoparticles of the multiferroic compound BiMnO3 with an average size of about 14 nm were successfully synthesized in the pores of SBA-15, and their magnetic properties were investigated. The prepared BiMnO3 nanoparticles showed both antiferromagnetic and ferromagnetic behavior, whereas BiMnO3 bulk crystals consistently showed ferromagnetic behavior. The prepared BiMnO3 nanoparticles exhibited unique magnetic size effects: the appearance of antiferromagnetic behavior and the coexistence of antiferromagnetic and ferromagnetic components.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2010-06-25
著者
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Deguchi Hiroyuki
Faculty Of Engineering Doshisha University
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Tajiri Takayuki
Faculty Of Engineering Kyushu Institute Of Technology:(present Address)faculty Of Science Fukuoka Un
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Shigemi Kohiki
Faculty of Engineering, Kyushu Institute of Technology, Kitakyushu 804-8550, Japan
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Hiroyuki Deguchi
Faculty of Engineering, Kyushu Institute of Technology, Kitakyushu 804-8550, Japan
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Harazono Manabu
Faculty of Engineering, Kyushu Institute of Technology, Kitakyushu 804-8550, Japan
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Masaki Mito
Faculty of Engineering, Kyushu Institute of Technology, Kitakyushu 804-8550, Japan
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Atsushi Kohno
Faculty of Science, Fukuoka University, Fukuoka 814-180, Japan
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Manabu Harazono
Faculty of Engineering, Kyushu Institute of Technology, Kitakyushu 804-8550, Japan
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Takayuki Tajiri
Faculty of Science, Fukuoka University, Fukuoka 814-180, Japan
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