Abstract
Abstract : The electrical resistivity (p), magnetic susceptibility (chi), thermoelectric power (S), and specific heat (Cp) of PtGa2 were measured as a function of temperature (T). The metallic behavior of this intermetallic compound is shown from the room temperature resistivity value (19 micro ohm-cm) and the linear dependence of the S vs. T curve at temperatures above the Debye temperature (theta D). The diamagnetic susceptibility is independent of T. The density of states (DOS) at the Fermi energy (EF) obtained from chi and S data agree within 22% and 15%, respectively, of the value obtained previously from a semiempirical band structure calculation. The low temperature Cp data, however, yielded a much smaller DOS at EF. The data for PtGa2 are compared to those for Au and AuGa2 in order to better understand the transport properties of this material. Keywords: Intermetallic compound, Diamagnetic susceptibility, Density of states, Transport properties, Band structure, Platinum compounds, Gallium compounds.
Published Version
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