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Report No.

Orbital ordering in UGa$$_{3}$$; Detection by 69Ga NMR

Kambe, Shinsaku  ; Kato, Harukazu; Sakai, Hironori; Walstedt, R. E.; Aoki, Dai*; Haga, Yoshinori   ; Onuki, Yoshichika

69Ga NMR has been measured in the paramagnetic and antiferromagnetic states of UGa$$_{3}$$(TN=67K). The temperature dependence of Knight shift has been determined. Based on the temperature dependence of static susceptibility, K- chi ploy is obtained. The slope of the plot corresponds to the hyperfine coupling constant. The hyperfine coupling constant is changed at TN and the second transition 40K. This fact indicates that the electronic sturcture is changed drastically at the transitions.



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Category:Materials Science, Multidisciplinary



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