Single Crystal Growth and the Fermi Surface Property in LuCoGa₅

抄録

We succeeded in growing a high-quality single crystal of LuCoGa₅ with the HoCoGa₅-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.