Single crystal growth and the fermi surface property in LuCoGa

Matsuda, Tatsuma; Haga, Yoshinori   ; Sakai, Hironori   ; Aoki, Dai*; Ikeda, Shugo; Yamamoto, Etsuji  ; Shishido, Hiroaki*; Settai, Rikio*; Harima, Hisatomo*; Onuki, Yoshichika

We succeeded in growing a high-quality single crystal of LuCoGa with the HoCoGa-type tetragonal crystal structure by the Ga self-flux method. The lattice parameters, fractional coordinates, and thermal parameters were determined from single-crystal X-ray diffraction measurements. We also measured the electrical resistivity, specific heat, and the de Haas-van Alphen (dHvA) effect. The Fermi surface mainly consists of two nearly cylindrical Fermi surfaces, which are well explained by the results of full-potential linearized augmented plane wave (FLAPW) energy band calculations.