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

doi:10.1063/1.2117619

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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20 Scopus citations

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 language	English (US)
Article number	172104
Pages (from-to)	1-3
Number of pages	3
Journal	Applied Physics Letters
Volume	87
Issue number	17
DOIs	https://doi.org/10.1063/1.2117619
State	Published - Oct 24 2005

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

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10.1063/1.2117619

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title = "Structural and transport properties of epitaxial Na xCoO 2 thin films",

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.",

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

note = "Funding Information: The work was partially supported by the NSF under Grant Nos. DMR-0405502 (for Q.L.), DMR-0103354 (for X.X.X. and D.G.S.), DMR-0205232 (for Z.K.L.), and DMR-0308012 (for X.P.), by the U.S. DOE under Grant Nos. DE-FG02-01ER45907 (for X.X.X.) and DE-FG02-97ER45638 (for D.G.S.), and by the ONR under Grant No. N00014-04-1-0057 (for N.P.O.).",

year = "2005",

month = oct,

day = "24",

doi = "10.1063/1.2117619",

language = "English (US)",

volume = "87",

pages = "1--3",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics",

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TY - JOUR

T1 - Structural and transport properties of epitaxial Na xCoO 2 thin films

AU - Venimadhav, A.

AU - Soukiassian, A.

AU - Tenne, D. A.

AU - Li, Qi

AU - Xi, X. X.

AU - Schlom, D. G.

AU - Arroyave, R.

AU - Liu, Z. K.

AU - Sun, H. P.

AU - Pan, Xiaoqing

AU - Lee, Minhyea

AU - Ong, N. P.

N1 - Funding Information: The work was partially supported by the NSF under Grant Nos. DMR-0405502 (for Q.L.), DMR-0103354 (for X.X.X. and D.G.S.), DMR-0205232 (for Z.K.L.), and DMR-0308012 (for X.P.), by the U.S. DOE under Grant Nos. DE-FG02-01ER45907 (for X.X.X.) and DE-FG02-97ER45638 (for D.G.S.), and by the ONR under Grant No. N00014-04-1-0057 (for N.P.O.).

PY - 2005/10/24

Y1 - 2005/10/24

N2 - 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.

AB - 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.

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DO - 10.1063/1.2117619

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EP - 3

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 17

M1 - 172104

ER -

Structural and transport properties of epitaxial Na _xCoO ₂ thin films

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