Electrical and structural properties of BaCe0.85Ru0.05Y0.10O3%thin film prepared by RF magnetron sputtering

Masanori Ochi; Takashi Tsuchiya; Shohei Yamaguchi; Takaaki Suetsugu; Naoya Suzuki; Masaki Kobayashi; Makoto Minohara; Koji Horiba; Hiroshi Kumigashira; Tohru Higuchi

doi:10.7567/JJAP.55.06GJ02

Electrical and structural properties of BaCe_0.85Ru_0.05Y_0.10O₃%thin film prepared by RF magnetron sputtering

Masanori Ochi, Takashi Tsuchiya, Shohei Yamaguchi, Takaaki Suetsugu, Naoya Suzuki, Masaki Kobayashi, Makoto Minohara, Koji Horiba, Hiroshi Kumigashira, Tohru Higuchi

研究成果: Article › 査読

抄録

The a-and c-axes-oriented BaCe_0.85Ru_0.05Y_0.10O₃%(BCRY) thin films have been deposited on Nb-SrTiO₃(100) substrates by radio frequency (RF) magnetron sputtering. Such BCRY thin films have mixed valence states of Ce4+ and Ce3+. The activation energies (EA) for the conductivity of films thicker than 200nm are 0.23-0.26 eV, which corresponds to half EA of bulk ceramics, below 400 °C. The BCRY thin films exhibit ion conduction at the bulk region and electron-ion mixed conduction at the surface region. Proton conduction is also observed in the surface state in addition to the mixed conduction. The Fermi levels (EF) locate at the middle position in the band gap region, although EF of the BaCe_0.85Ru_0.05Y_0.10O₃%thin films locates on the valence band side. These results indicate that the Ru5+ ions and protons act as donor ions in BCRY thin films.

本文言語	English
論文番号	06GJ02
ジャーナル	Japanese journal of applied physics
巻	55
号	6
DOI	https://doi.org/10.7567/JJAP.55.06GJ02
出版ステータス	Published - 2016 6
外部発表	はい

ASJC Scopus subject areas

Engineering(all)
Physics and Astronomy(all)

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10.7567/JJAP.55.06GJ02

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引用スタイル

Electrical and structural properties of BaCe_0.85Ru_0.05Y_0.10O₃%thin film prepared by RF magnetron sputtering. / Ochi, Masanori; Tsuchiya, Takashi; Yamaguchi, Shohei; Suetsugu, Takaaki; Suzuki, Naoya; Kobayashi, Masaki; Minohara, Makoto; Horiba, Koji; Kumigashira, Hiroshi; Higuchi, Tohru.

In: Japanese journal of applied physics, Vol. 55, No. 6, 06GJ02, 06.2016.

研究成果: Article › 査読

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abstract = "The a-and c-axes-oriented BaCe0.85Ru0.05Y0.10O3%(BCRY) thin films have been deposited on Nb-SrTiO3(100) substrates by radio frequency (RF) magnetron sputtering. Such BCRY thin films have mixed valence states of Ce4+ and Ce3+. The activation energies (EA) for the conductivity of films thicker than 200nm are 0.23-0.26 eV, which corresponds to half EA of bulk ceramics, below 400 °C. The BCRY thin films exhibit ion conduction at the bulk region and electron-ion mixed conduction at the surface region. Proton conduction is also observed in the surface state in addition to the mixed conduction. The Fermi levels (EF) locate at the middle position in the band gap region, although EF of the BaCe0.85Ru0.05Y0.10O3%thin films locates on the valence band side. These results indicate that the Ru5+ ions and protons act as donor ions in BCRY thin films.",

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AU - Ochi, Masanori

AU - Tsuchiya, Takashi

AU - Yamaguchi, Shohei

AU - Suetsugu, Takaaki

AU - Suzuki, Naoya

AU - Kobayashi, Masaki

AU - Minohara, Makoto

AU - Horiba, Koji

AU - Kumigashira, Hiroshi

AU - Higuchi, Tohru

PY - 2016/6

Y1 - 2016/6

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