Magnetism, superconductivity and fermi surfaces of plutonium compounds

Haga, Yoshinori   ; Aoki, Dai*; Yamagami, Hiroshi*; Matsuda, Tatsuma; Nakajima, Kunihisa  ; Arai, Yasuo; Homma, Yoshiya*; Shiokawa, Yoshinobu*; Yamamoto, Etsuji  ; Nakamura, Akio; Onuki, Yoshichika*

Single crystals of plutonium compounds PuRhGa and PuIn are successfully grown. For PuRhGa, anisotropy of the supercon- ducting upper critical field was found and analyzed by the anisotropic mass model, consistent with quasi-two-dimensional electronic states predicted by band calculations. On the other hand, the de Haas-van Alphen oscillation was observed in PuIn. By comparing with the band calculations, it is concluded that 5f electrons are itinerant in PuIn.