Effect of the Pressure and the Rare-Earth Substiution on the Verwey Transition of Yfe_2O_4

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概要

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• Effects of the hydrostatic pressure as well as the rare earth substitution are examined on the two-step Verwey transition of the stoic:hiometric YFe.O., by the electricand the magnetic measurements. The upper and 1:he lower transition temperaturesdecrease with the compression by 2.6 and 10.5 K/ kb, respectively. Substitution of Yby Lu decreases whereas that by Dy increases the transition temperature. At roomtemperature in the high conductivity phase, lattice constants in the hexagonal frame,a and c, are measured for sttbstituted crystals and for the stoichiometric YFe.0.under pressure. It is shown that the upper and the lower transition temperatures areindependent from c but decrease 10 and 42 K, resjvectively, by 10 ' compression ofthe lattice along the a axis. The character of the transition is discussed briefly.

• 社団法人日本物理学会の論文
• 1990-02-15

著者

• Nakagawa Yasuaki

  Institute for Materials Research, Tohoku University

• KIMIZUKA Noboru

  National Institute for Research in Inorganic Materials

• TANAKA Midori

  Faculty of Science,Ochanomizu University

• Siratori K

  Kyushu Univ. Fukuoka

• Siratori Kiiti

  Institute Of Materials Structure Science High Energy Accelerator Research Organization

• Siratori Kiiti

  Department Of Physics Osaka University

• Shiratori K

  Kyushu Univ. Fukuoka

• Siratori Kiiti

  Faculty Of Science Kyusyu University

• IIDA Junji

  Faculty of Sciences, Ochanomizu University

• Iida J

  Department Of Physics Faculty Of Science Ochanomizu University

• Iida Junji

  Faculty Of Sciences Ochanomizu University

• MORI Nobuo

  Faculty of Science and Technology, Science University of Tokyo

• Mori Nobuo

  Saitama Study Center The Open University Of Japan

• Mori Nobuo

  Institute Of Solid State Physics The University Of Tokyo

• OOMI Gendo

  Faculty of Engineering, Kumamoto University

• Tanaka Midori

  Faculty Of Science Ochanomizu University

• SHIRATORI Kiiti

  Faculty of Science,Osaka University

• TAKAHASHI Hiroki

  Faculty of Science,Hokkaido University

• KISHI Manabu

  Institute for Materials Reasearch,Tohoku University

• Nakagawa Y

  Tohoku Univ. Sendai

• Nakagawa Y

  Himeji Inst. Technol. Ako‐gun

• Nakagawa Y

  Institute For Materials Research Tohoku University

• Nakagawa Yasuaki

  Department Of Electronics Tohoku Institute Of Technology

• Iida Junji

  Department Of Physics Ochanomizu University

• Siratori Kiiti

  Depatment Of Physics Faculty Of Science Kyusyu University

• Nakagawa Yasuaki

  Institute For Material Research Tohoku University

• Oomi Gendo

  Faculty Of Science Hokkaido University

• Mori N

  Saitama Study Center The Open University Of Japan

• Kimizuka N

  National Institute For Research In Inorganic Materials

• Kishi Masato

  Department Of Applied Physics University Of Tokyo

• Nakagawa Yasuaki

  The Research Institute For Iron Steel And Other Metals Tohoku University

• Shiratori Kiiti

  Faculty Of Science Osaka University

• Oomi Gendo

  Faculty Of Engineering Kumamoto University

• Mori Nobuo

  Saitama Study Center, The Open University of Japan

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