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Incommensurate nature of the antiferromagnetic order in GdCu$$_2$$

Kaneko, Koji   ; Tabata, Chihiro; Hagihara, Masato   ; Yamauchi, Hiroki   ; Kubota, Masato ; Osakabe, Toyotaka  ; Onuki, Yoshichika*

A magnetic order in orthorhombic GdCu$$_2$$ was investigated by a single crystal neutron diffraction with thermal neutron. Magnetic peaks were observed at incommensurate positions described by the ordering vector $$q$$=($${delta}$$~1~0) with $${delta}$$=0.678 at 4~K. This ordering vector is close to the commensurate one with $$q_c$$=(2/3~1~0) reported earlier, but clearly deviates. The incommensurate nature of the magnetic order in GdCu$$_2$$ is further corroborated by the peak shift with temperature below $$T_{rm N}$$.



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Category:Physics, Multidisciplinary



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