Structural and transport properties of epitaxial Na xCoO 2 thin films

A. Venimadhav, A. Soukiassian, D. A. Tenne, Qi Li, X. X. Xi, D. G. Schlom, R. Arroyave, Z. K. Liu, H. P. Sun, Xiaoqing Pan, Minhyea Lee, N. P. Ong

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Abstract

We have studied structural and transport properties of epitaxial Nax Co O2 thin films on (0001) sapphire substrate prepared by topotaxially converting an epitaxial Co3 O4 film to Nax Co O2 with annealing in Na vapor. The films are c -axis oriented and in-plane aligned with [10 1- 0] Nax Co O2 rotated by 30° from [10 1- 0] sapphire. Different Na vapor pressures during the annealing resulted in films with different Na concentrations, which showed distinct transport properties.

Original languageEnglish (US)
Article number172104
Pages (from-to)1-3
Number of pages3
JournalApplied Physics Letters
Volume87
Issue number17
DOIs
StatePublished - Oct 24 2005

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All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

Cite this

Venimadhav, A., Soukiassian, A., Tenne, D. A., Li, Q., Xi, X. X., Schlom, D. G., Arroyave, R., Liu, Z. K., Sun, H. P., Pan, X., Lee, M., & Ong, N. P. (2005). Structural and transport properties of epitaxial Na xCoO 2 thin films. Applied Physics Letters, 87(17), 1-3. [172104]. https://doi.org/10.1063/1.2117619