Phase Transitions and Diagrams of Pseudo-binary Antiferroquadrupolar Ordering Compound Ho_<1-x>Tb_xB_2C_2 (0 ≤ x ≤ 1)(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)

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概要

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• We performed precise experiments of specific heat and magnetization on single-crystalline samples of pseudo-binary antiferroquadrupolar ordering compounds Ho_<1-x>Tb_xB_2C_2 (0 ≤ x ≤ 1). Although the Tb^<3+> ions do not participate in the AFQ order in phase III of HoB_2C_2 that is a coexistent phase of AFQ and antiferromagnetic order, these are cooperative with the AFQ ordering and sustain phase III up to x = 0.6. In Ho_<0.4>Tb_<0.6>B_2C_2, phase III is separated into phases III_<Ho> and III_<Tb>, where these are similar to phase III in HoB_2C_2 and TbB_2C_2, respectively. This implies that the magnetic structures are different between phases III_<Ho> and III_<Tb>. It originates in different antiferromagnetic interactions between both compounds.

• 社団法人日本物理学会の論文
• 2004-07-15

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

• ONODERA Hideya

  Department of Physics, Graduate School of Science, Tohoku University

• TOBO Aya

  Department of Physics, Graduate School of Science, Tohoku University

• Tobo A

  Department Of Physics Graduate School Of Science Tohoku University

• Tobo Aya

  Department Of Physics Graduate School Of Science Tohoku University

• Tobo Aya

  The Institute Of Physical And Chemical Research(riken)

• IDO Kaihei

  Institute for Materials Research, Tohoku University

• KANEKO Koji

  Institute for Materials Research, Tohoku University

• Ohyama Kenji

  Imr Tohoku University

• Kaneko K

  Japan Atomic Energy Agency Ibaraki

• Ido K

  Institute For Materials Research Tohoku University:(present Office)shlumberger K.k.

• Onodera Hideya

  Department Of Physics Graduate School Of Science Tohoku University

• Oikawa K

  Inst. Materials Structure Sci. Ibaraki

• Ido Kaihei

  Institute For Materials Research Tohoku University:(present Address)fuji Xerox Dpsc Research And Dev

• Ohoyama Kenji

  Institute For Materials Of Physics Tohoku University

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