Substrate-induced anisotropy of c-axis textured NaxCoO2 thin films

Yu, L.; Krockenberger, Y.; Fritsch, I.; Habermeier, H.-U.

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Substrate-induced anisotropy of c-axis textured Na_xCoO₂ thin films

Yu, L., Krockenberger, Y., Fritsch, I., & Habermeier, H.-U. (2007). Substrate-induced anisotropy of c-axis textured Na_xCoO₂ thin films. Progress in Solid State Chemistry, 35(2-4 Sp. Iss.), 545-551.

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Item Permalink: https://hdl.handle.net/21.11116/0000-000E-B4F0-7 Version Permalink: https://hdl.handle.net/21.11116/0000-000E-B4F1-6

Genre: Journal Article

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Creators:
Yu, L.^{1, 2}, Author
Krockenberger, Y.^{1, 2}, Author
Fritsch, I.¹, Author
Habermeier, H.-U.^{1, 2, 3}, Author

Affiliations:
1Scientific Facility Thin Film Technology (Gennady Logvenov), Max Planck Institute for Solid State Research, Max Planck Society, ou_3370497
2Department Solid State Spectroscopy (Bernhard Keimer), Max Planck Institute for Solid State Research, Max Planck Society, ou_3370480
3Department Physical Chemistry of Solids (Joachim Maier), Max Planck Institute for Solid State Research, Max Planck Society, ou_3370483

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Free keywords: NaxCoO2 thin films; pulsed laser deposition; vicinal STO substrates; resistivity anisotropy

Abstract: NaxCoO2 [x = 0.51, 0.54, and 0.59] thin films have been grown on SrTiO3 (100)-oriented single crystals with a 5 degrees vicinal cut towards [010] by pulsed laser deposition. We analysed the films by X-ray diffractometry, atomic force microscopy (AFM), and dc-transport measurements. X-ray diffraction patterns of the films show single phase and c-axis textured growth with the film plane closely aligned to the [001]-direction of 5 degrees miscut SrTiO3 (001) substrates. In addition to the structural analysis of these films we performed transport measurements along and perpendicular to the substrate tilt direction and determined the resistivity anisotropy as a function of temperature. The results enable the development of a strategy for the fabrication of NaxCoO2 based thermoelectric thin film devices. (c) 2007 Elsevier Ltd. All rights reserved.

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Language(s): eng - English

Dates: Date issued: 2007

Publication Status: Issued

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Rev. Type: Peer

Identifiers: eDoc: 338675
ISI: 000248298000040

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Title: Progress in Solid State Chemistry

Source Genre: Journal

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Pages: - Volume / Issue: 35 (2-4 Sp. Iss.) Sequence Number: - Start / End Page: 545 - 551 Identifier: ISSN: 0079-6786