Acta Physica Polonica B

Vol. 34, No. 22, February 2003, page 1063

NQR Measurements of UPtGa5

Harukazu Kato, Hironori Sakai, Shinsaku Kambe, Russell E. Walstedt, Yoshihumi Tokiwa, Yoshichika Onuki

Ga NQR measurements have been carried out for 5f-antiferromagnet, UPtGa5.The zero-applied-field NQR spectrum in the antiferromagnetic state can be explained as the resonance lines of a Ga nuclei, which is affected by the Zeeman interaction with the internal field from the uranium magnetic moments, as well as the quadrupole interaction. The hyperfine coupling constant in the antiferromagnetic state is evaluated.

PACS numbers: 76.60.--k, 75.50.Ee

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