Electrical Resistivity, Magnetic Susceptibility, Thermoelectric Power Heat Capacity of PtGa2

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.

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Document Details

Document Type
Technical Report
Publication Date
Jul 22, 1988
Accession Number
ADA199103

Entities

People

  • F. L. Machado
  • L. Hsu
  • L. W. Zhou
  • R. Stanley Williams

Organizations

  • University of California, Los Angeles

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Band Structures
  • California
  • Chemistry
  • Energy Bands
  • Fermi Levels
  • Heat Capacity
  • Intermetallic Compounds
  • Magnetic Properties
  • Materials
  • Measurement
  • Metals
  • Physics
  • Power Measurement
  • Quantum Properties
  • Solid State Physics
  • Spin-Orbit Interaction
  • Transport Properties

Readers

  • Materials Science and Engineering.
  • Superconducting Magnet Technology
  • Thin Film Deposition Science.

Technology Areas

  • Microelectronics