Abstract. We present anisotropic, zero applied magnetic field, temperature-dependent resistivity measurements on hexagonal, non-magnetic YPtIn and LuAgGe single crystals. For these materials the in-plane resistivity, ρ_ab, is significantly higher than the c-axis one, ρ_c, with ρ_ab/ρ_c1.4 for YPtIn and 4.2–4.7 for LuAgGe. The connection between the electronic structure and the anisotropic transport properties is discussed using density functional calculations that link the observed anisotropy with a specific shape of Fermi surface and anisotropy of the Fermi velocities.

Print publication: Issue 4 (1 February 2006)
Received 14 August 2005
Published 13 January 2006