Electrical Resistivity, Magnetic Susceptibility, Thermoelectric Power Heat Capacity of PtGa2
Technical rept. no. 11, Aug 1987-Jul 1988
CALIFORNIA UNIV LOS ANGELES
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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.
- Inorganic Chemistry