High-Pressure Synthesis and Magnetic Properties of Orthorhombic CuRh_2O_4(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)

スポンサーリンク

概要

• 論文の詳細を見る

• Polycrystals of orthorhombic CuRh_2O_4 were prepared by a solid state reaction under high pressure and its magnetic properties were compared with those of polymorph-tetragonal CuRh_2O_4 (spinel-type compound). The orthorhombic phase undergoes antiferromagnetic transition at 24K. The ratio of the Curie-Weiss temperature (θ_<CW>) to the Neel temperature (T_N) is estimated to be f=|θ_<CW>|/T_N=2.6 and is considerably smaller than f in the tetragonal phase, 5.3. This indicates that geometrical magnetic frustration inherent in the Cu^<2+> network of the spinel structure is released in the orthorhombic phase with lower crystal symmetry. We observed a weak ferromagnetism below T_N in the orthorhombic phase; this is also discussed in terms of crystal symmetry.

• 社団法人日本物理学会の論文
• 2006-02-15

著者

• UEDA Y.

  Institute of Pathology, Tenri Hospital

• YAGI T.

  Institute for Solid State Physics, University of Tokyo

• Ohgushi K.

  Institute For Solid State Physics University Of Tokyo

• GOTOU H.

  Institute for Solid State Physics, University of Tokyo

• OHGUSHI K.

  Institute for Solid State Physics, University of Tokyo

関連論文

• New Aspects of Cell Biology in Osteosarcoma
• Phase Transitions of MnO Under Static Compression
• Post Garnet Phases and the Mineralogy of the Lower Mantle
• High-Pressure and High-Temperature in situ X-ray Diffraction Study of Natural Garnet(Mg_Fe_Ca_)_3Al_2Si_3O_ up to 32 GPa and 2000 K Using MA8-Type Apparatus
• High-Pressure Synthesis and Magnetic Properties of Orthorhombic CuRh_2O_4(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
• 203 On the Heat-and Mass Transport during Melting and Dissolution(STEELMAKING, The 105th ISIJ Meeting)
• Elimination of nitroxide radical dialyzed in the hippocampus during kainate-induced seizure in rats

スポンサーリンク