Nonlinear positive temperature coefficient of resistance of BaTiO3 film

Motochika Okano, Yukio Watanabe, Sang Wook Cheong

Research output: Contribution to journalArticle

33 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 languageEnglish
Pages (from-to)1923-1925
Number of pages3
JournalApplied Physics Letters
Volume82
Issue number12
DOIs
Publication statusPublished - Mar 24 2003

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coefficients
metals
temperature
electric contacts
diodes
ceramics
anomalies
single crystals
thin films
crystals

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

Cite this

Nonlinear positive temperature coefficient of resistance of BaTiO3 film. / Okano, Motochika; Watanabe, Yukio; Cheong, Sang Wook.

In: Applied Physics Letters, Vol. 82, No. 12, 24.03.2003, p. 1923-1925.

Research output: Contribution to journalArticle

Okano, Motochika ; Watanabe, Yukio ; Cheong, Sang Wook. / Nonlinear positive temperature coefficient of resistance of BaTiO3 film. In: Applied Physics Letters. 2003 ; Vol. 82, No. 12. pp. 1923-1925.
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