Critical Neutron Scattering Study of the Compositional Phase Transition in Mg-Doped CuGeO_3 : Condensed Matter: Electronic Properties, etc.

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概要

• 論文の詳細を見る

• Cu_<1-x>Mg_xGeO_3 undergoes a first-order phase transition at a critical concentration x_c between an antiferromagnetic (AF) state on dimerized lattice (D-AF) and an AF Neel state on undistorted uniform lattice (U-AF). Previous magnetic susceptibility measurements showed x_c = 0.023 while a recent neutron scattering study reported x_c = 0.027 ± 0.001. The present critical scattering due to antiferromagnetic fluctuations near the superlattice reflection (O, 1, 1/2) unambiguously determines x_c = 0.028 ± 0.001 at T_N = 3.4 〜 4 K Also, at T =1.3 K, the phase boundary was determined to be x_c = 0.028 ± 0.001 by observation of a jump of an effective magnetic moment across x_c.

• 社団法人日本物理学会の論文
• 2000-10-15

著者

• Nishi Masakazu

  Neutron Scattering Laboratory Issp University Of Tokyo

• Nishi M

  Neutron Scattering Laboratory Issp University Of Tokyo

• Nishi Masakazu

  Neutron Scattering Laboratory Institute For Solid State Physics The University Of Tokyo

• Nishi Masakazu

  Univ. Tokyo Chiba Jpn

• Nishi Masakazu

  Institute For Solid State Phrsics University Of Tokyo

• Nishi Masakazu

  Issp University Of Tokyo

• Nakao Hironori

  Department Of Physics Tohoku University

• Nakao Hironori

  Neutron Scattering Laboratory Institute For Solid State Physics The University Of Tokyo:(present)pho

• FUJII Yasuhiko

  Neutron Scattering Laboratory,Institute for Solid State Physics,The University of Tokyo

• MASUDA Takatsugu

  Department of Advanced Materials Science, The University of Tokyo

• UCHINOKURA Kunimitsu

  Department of Advanced Materials Science, The University of Tokyo

• SHIRANE Gen

  Department of Physics, Brookhaven National Laboratory

• Nishi Masakazu

  Neutron Scattering Laboratory I. S. S. P. University Of Tokyo

• Nishi Masakazu

  Neutron Scattering Laboratory Issp The University Of Tokyo

• Nakao Hironori

  Neutron Scattering Laboratory Institute For Solid States Physics The University Of Tokyo

• Shirane G

  Department Of Physics Brookhaven National Laboratory

• Shirane Gen

  Department Of Physics Brookhaven National Laboratory

• Nakao H

  Department Of Physics Tohoku University

• 藤井 陽一

  東大生産研

• Nakao Hironori

  Neutron Scattering Laboratory Institute For Solid State Physics The University Of Tokyo

• Shirane G.

  Department of physics, Brookhaven National Laboratory

• NISHI Masato

  Department of Applied Physics,Faculty of Engineering,Hiroshima Univershity

• Fujii Yoshikazu

  Department Of Engineering Science Kyoto University

• Shirane Gen

  Brookhavcn National Laboratory Upion

• Masuda Takatsugu

  Department Of Advanced Materials Science The University Of Tokyo

• Uchinokura Kunimitsu

  Department Of Advanced Materials Science The University Of Tokyo

• Uchinokura Kunimitsu

  Department Of Applied Physics The University Of Tokyo:(also) Department Of Advanced Materials Scienc

• Fujii Yasuhiko

  Neutron Scattering Laboratory Issp The University Of Tokyo

• Masuda T

  Toyama Univ. Toyama

• Uchinokura K

  Department Of Advanced Materials Science The University Of Tokyo

• NISHI Masakazu

  Institute for Solid State Physics, The University of Tokyo

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