Ga-NQR in UGa

Kambe, Shinsaku  ; Sakai, Hironori   ; Tokunaga, Yo  ; Haga, Yoshinori   ; Yamamoto, Etsuji  

The NQR experiment under the zero field of ferromagnetic compound UGa was conducted. The experiment was conducted by paramagnetism and a ferromagnetic phase. Since Ga cores are I=3/2, a Ga-NQR resonance line is set to one in a paramagnetic phase. On the other hand, in the state of ferromagnetic order, division of a resonance line occurs by an internal magnetic field. The spectrum of a ferromagnetic order state was analyzed and temperature dependence of the internal magnetic field in Ga site was determined. With this compound, the resonance magnetism X-line scattering experiment of Ga orbit is conducted, and temperature dependence of that scattered intensity is measured. Therefore, the relation between an internal magnetic field and scattered intensity became clear. It argues also about the origin to the resonance magnetism X-line scattered intensity of Ga orbit.