Anomalous Magnetic Ordering Phenomena in Tetragonal TbB_2C_2 Observed by Neutron Diffraction(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)

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概要

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• Detailed neutron diffraction measurements on a single crystalline TbB_2C_2 in which magnetic field induced antiferroquadrupolar orderings are realised have been performed to understand characteristics of the transition under zero magnetic field. The results indicate that the magnetic transition phenomena consist of development of at least three magnetic components: (1) a dominant antiferromagnetic component which develops below T_N = 21.7 K, (2) a weak long periodic component which develops below about 18 K, and (3) anomalous components with broad magnetic scatterings which develop below about 50 K, which can not be understood by only a short range magnetic ordering. Since these three components develop independently, the transition phenomena in TbB_2C_2 are much more complicated than expected from a typical λ-type anomaly at T_N in the temperature dependence of magnetic specific heat.

• 社団法人日本物理学会の論文
• 2002-12-15

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

• KATANO Susumu

  Advanced Science Research Center, Japan Atomic Energy Agency

• Katano S

  Advanced Science Research Center Japan Atomic Energy Agency:(present Office)department Of Physics Sa

• MATSUDA Masaaki

  Advanced Science Research Center, Japan Atomic Energy Research Institute

• KANEKO Koji

  Institute for Materials Research, Tohoku University

• YAMAGUCHI Yasuo

  Institute for Materials Research, Tohoku University

• ONODERA Hideya

  Institute for Materials Research, Tohoku University

• Maple M

  Univ. California California Usa

• Katano Susumu

  Advanced Science Research Center Japan Atomic Energy Research Institute:(present Office)department O

• Ohyama Kenji

  Imr Tohoku University

• Maeda M

  Department Of Engineering Physics Electronics And Mechanics Graduate School Of Engineering Nagoya In

• Yamaguchi Y

  Tohoku Univ. Sendai

• Yamaguchi Y

  Kumamoto Techno Res. Park Kumamoto Jpn

• Katano S

  Department Of Physics Japan Atomic Energy Research Institute

• Kaneko K

  Japan Atomic Energy Agency Ibaraki

• Onodera Hideya

  Institute For Materials Research

• Oikawa K

  Inst. Materials Structure Sci. Ibaraki

• Yamaguchi Yasuo

  Institute For Materials Research Tohoku University

• MATSUDA M.

  Institute for Solid State Physics, University of Tokyo

• Matsuda Masaaki

  Advanced Science Research Center Japan Atomic Energy Research Institute

• Yamaguchi Y

  Central Workshop Osaka University

• Matsuda Masaaki

  Department Of Physics Tohoku University

• Ohyama Kenji

  Institute For Material Research Tohoku University

• Matsuda M

  Institute For Solid State Physics University Of Tokyo

• Ohoyama Kenji

  Institute For Materials Of Physics Tohoku University

• Maeda Masaki

  Department Of Engineering Physics Electronics And Mechanics Graduate School Of Engineering Nagoya In

• Katano Susumu

  Advanced Science Research Center Jaeri

• Katano Susumu

  Advanced Science Reseach Center, Japan Atomic Energy Reserach Institute, Ibaraki 319-1195

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