Neutron Powder Diffraction on Ce^<11>B_2C_2 and Nd^<11>B_2C_2:A New Model for the Tetragonal Crystal Structure

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概要

• 論文の詳細を見る

• Crystal structtrres of CeBzC3 and NdBzC3 xvere investigated by uaaeans of netrtron powder11diffraction l1S1I1g B enr?ched S2lLl11PI0S. Diffraction ratterns of Ce"BnCz and Nd"BxCx arevery sirnilar to each other, and Rietveld analyses reveal that the c;rystal strttcttrre lcelongs toa syrnnaetry group of tetragonal P4/rnbrn, where the rare earth atotaus occtrpy 2((2) sites srndthe B and C atoms occtrpy txvo 4(/7) sites with dif['erent positior?al parameters. The nexvlydetermined structtrre differs f'roum previously reported ones with P'X/rnbm and P42c uaaainly inthe site positions occtrpied by the B and C atonas. The B and C atorns form ntetwork planesconsisting of non-regtrlar sqtrares and octagons.

• 社団法人日本物理学会の論文
• 1999-07-15

著者

• OHOYAMA Kenji

  Institute for Materials Research, Tohoku University

• Ohoyama K

  Institute For Materials Research Tohoku University

• Ohoyama Kenji

  Department Of Physics Faculty Of Science Tohoku University

• YAMAUCHI Hiroki

  Institute for Materials Research, Tohoku University

• ONIMARU Takahiro

  Institute for Solid State Physics, University of Tokyo

• YAMAGUCHI Yasuo

  Institute for Materials Research, Tohoku University

• ONODERA Hideya

  Institute for Materials Research, Tohoku University

• Ohyama Kenji

  Imr Tohoku University

• Yamaguchi Y

  Tohoku Univ. Sendai

• Yamaguchi Y

  Kumamoto Techno Res. Park Kumamoto Jpn

• Yamauchi H

  Istec Tokyo Jpn

• Yamauchi H

  Superconductivity Research Laboratory Istec

• Yamauchi Hisao

  Superconductivity Research Laboratory Istec:(present Address)research Laboratory Of Engineering Mate

• Onimaru T

  Univ. Tokyo Chiba

• Onodera Hideya

  Institute For Materials Research

• Oikawa K

  Inst. Materials Structure Sci. Ibaraki

• Yamamoto H

  The Research Institute For Iron Steel And Other Metals

• Yamamoto Hisao

  The Research Institute For Iron Steel And Other Metals

• Yamaguchi Yasuo

  Institute For Materials Research Tohoku University

• Yamauchi H

  Institute For Materials Research Tohoku University:(present Office)neutron Science Research Center

• Yamaguchi Y

  Central Workshop Osaka University

• Yamauchi Hiroki

  Institute For Materials Research Tohoku University:(present Office)neutron Science Research Center

• Onimaru Takahiro

  Institute For Solid State Physics University Of Tokyo

• Yamamoto H

  Department Of Energy Engineering And Science Nagoya University

• Ohoyama Kenji

  Institute For Materials Of Physics Tohoku University

• Yamamoto H

  Univ. Tokyo Tokyo

• Yamamoto Hiroshi

  Department Of Energy Engineering And Science Nagoya University

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