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Magneic order of UGa$$_{3}$$ investigated by means of neutron scattering under uniaxial pressure

Nakamura, Mitsutaka; Matsuda, Tatsuma; Kakurai, Kazuhisa; Lander, G. H.; Kawarazaki, Shuzo*; Onuki, Yoshichika

The uranium intermetallic compounds UX$$_{3}$$ demonstrate a wide variety of magnetic properties, which depends on the strength of hybridization effect between the 5$$f$$-electron state of U atom and the $$s$$-,$$p$$-,$$d$$-electronic states of X atom. However, there are many uncertainties in the origin of these phenomena. UX$$_{3}$$ systems crystallizes in high symmetric structure, that is cubic AuCu$$_{3}$$ type. Therefore, the neutron diffraction measurement usually gives no conclusive information on the orientation of the total magnetic moment for UX$$_{3}$$ compounds because of their multi-domain structures. In this study we have succeeded to induce the anisotropic domain structure by applying the uniaxial pressure and prove the total magnetic moment of UGa$$_{3}$$ to be along the [011] axis.

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Category:Physics, Condensed Matter

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