Nonlinear positive temperature coefficient of resistance of BaTiO3 film

Motochika Okano; Yukio Watanabe; Sang Wook Cheong

doi:10.1063/1.1563061

Nonlinear positive temperature coefficient of resistance of BaTiO₃ film

Motochika Okano, Yukio Watanabe, Sang Wook Cheong

Condensed Matter Physics

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

Abstract

Nonlinear positive temperature coefficient of resistance (PCTR) of BaTiO₃ films was studied. Conductance decreasing with increasing temperature (T) above a (T) characteristic was found in the reverse-diode characteristics of metal contacts on strained BaTiO₃ epitaxial films. It was suggested that comparing the PCTR effect in ceramics, the anomaly was regarded as a PTCR effect at metal/ferroelectric contact and the origin of the effect in the thin films and single crystals were also discussed.

Original language	English
Pages (from-to)	1923-1925
Number of pages	3
Journal	Applied Physics Letters
Volume	82
Issue number	12
DOIs	https://doi.org/10.1063/1.1563061
Publication status	Published - Mar 24 2003

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

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10.1063/1.1563061

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abstract = "Nonlinear positive temperature coefficient of resistance (PCTR) of BaTiO3 films was studied. Conductance decreasing with increasing temperature (T) above a (T) characteristic was found in the reverse-diode characteristics of metal contacts on strained BaTiO3 epitaxial films. It was suggested that comparing the PCTR effect in ceramics, the anomaly was regarded as a PTCR effect at metal/ferroelectric contact and the origin of the effect in the thin films and single crystals were also discussed.",

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AU - Watanabe, Yukio

AU - Cheong, Sang Wook

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N2 - Nonlinear positive temperature coefficient of resistance (PCTR) of BaTiO3 films was studied. Conductance decreasing with increasing temperature (T) above a (T) characteristic was found in the reverse-diode characteristics of metal contacts on strained BaTiO3 epitaxial films. It was suggested that comparing the PCTR effect in ceramics, the anomaly was regarded as a PTCR effect at metal/ferroelectric contact and the origin of the effect in the thin films and single crystals were also discussed.

AB - Nonlinear positive temperature coefficient of resistance (PCTR) of BaTiO3 films was studied. Conductance decreasing with increasing temperature (T) above a (T) characteristic was found in the reverse-diode characteristics of metal contacts on strained BaTiO3 epitaxial films. It was suggested that comparing the PCTR effect in ceramics, the anomaly was regarded as a PTCR effect at metal/ferroelectric contact and the origin of the effect in the thin films and single crystals were also discussed.

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JF - Applied Physics Letters

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Nonlinear positive temperature coefficient of resistance of BaTiO₃ film

Abstract

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