Electronic structure and small polaron hole transport of copper aluminate

B. J. Ingram, Thomas O Mason, R. Asahi, K. T. Park, Arthur J Freeman

Research output: Contribution to journalArticle

128 Citations (Scopus)

Abstract

High-temperature electrical property measurements (electrical conductivity, thermoelectric coefficient) on polycrystalline CuAlO2 exhibited characteristic small polaron features, i.e., low mobilities (0.1-0.4 cm2/V s) and an activation energy of ∼0.14 eV. The thermopower was p type (∼440 μV/K) and roughly temperature independent. The local-density full-potential linearized augmented-plane-wave method was used to calculate the band structure, densities of states, and optical properties (within the electric-dipole approximation) in order to account for the unique electronic and optical properties of this potential transparent conducting oxide.

Original languageEnglish
Article number155114
Pages (from-to)1551141-1551147
Number of pages7
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume64
Issue number15
Publication statusPublished - Oct 15 2001

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Gene Conversion
Electronic structure
Copper
Optical properties
electronic structure
optical properties
copper
Thermoelectric power
Electronic properties
Band structure
Oxides
electric dipoles
Electric properties
plane waves
Activation energy
electrical properties
activation energy
conduction
Temperature
electrical resistivity

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Electronic structure and small polaron hole transport of copper aluminate. / Ingram, B. J.; Mason, Thomas O; Asahi, R.; Park, K. T.; Freeman, Arthur J.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 64, No. 15, 155114, 15.10.2001, p. 1551141-1551147.

Research output: Contribution to journalArticle

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