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Uematsu, Daisuke*; Soda, Minoru*; Kobayashi, Yoshiaki*; Sato, Masatoshi*; Igawa, Naoki; Kakurai, Kazuhisa
Journal of the Physical Society of Japan, 75(12), p.124601_1 - 124601_5, 2006/12
Times Cited Count:0 Percentile:0(Physics, Multidisciplinary)The close coupling of the crystal distortion to the magnetic ordering in AgCuO at 70K has been found by X-ray and neutron diffraction analyses and magnetic measurements. The system has a pyrochlore-related structure with corner-sharing tetrahedra of Cu ions, in which the geometrical frustration is inherent. We report how the structural distortion releases the frustration, stabilizing the magnetic ordered state.