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Magnetic diffuse and quasi-elastic scatterings in frustrated magnet YBaCo$$_{4}$$O$$_{7}$$

左右田 稔*; 古府 麻衣子   ; 河村 聖子   ; 浅井 晋一郎*; 益田 隆嗣*; 吉沢 英樹*; 古川 はづき*

Soda, Minoru*; Kofu, Maiko; Kawamura, Seiko; Asai, Shinichiro*; Masuda, Takatsugu*; Yoshizawa, Hideki*; Furukawa, Hazuki*

The magnetic diffuse and the quasi-elastic scatterings of YBaCo$$_{4}$$O$$_{7}$$ on alternating kagome and triangular lattices have been studied through neutron scattering measurement. In the wide temperature region, the quasi-elastic scattering is observed, and forms the hexagon shape by connecting the magnetic superlattice points. The quasi-elastic scattering has the strongest intensity and the sharp profile around the magnetic transition temperature. From the temperature dependence of the quasi-elastic scattering, the existence of the Z$$_{2}$$ vortex transition is expected in YBaCo$$_{4}$$O$$_{7}$$.

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分野:Physics, Multidisciplinary

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