Jpn. J. Appl. Phys. 39 (2000) pp. L133-L136 |Next Article| |Table of Contents|
|Full Text PDF (98K)| |Buy This Article|
Express Letter
Photoemission Study on Protonic Conductor CaZrO3: Evidence of the Exchange Mechanism of Proton and Hole
Tohru Higuchi,
Takeyo Tsukamoto,
Yasuhisa Tezuka1,
Kiyoshi Kobayashi2,
Shu Yamaguchi3 and
Shik Shin4,
Department of Applied Physics, Science University of Tokyo, Tokyo 162-0825, Japan
1Faculty of Science and Engineering, Hirosaki University,
Hirosaki 036-8561, Japan
2National Institute of Materials and Chemical Research, Tsukuba
305-8565, Japan
3Department of Materials Science and Engineering, Nagoya
Institute of Technology, Nagoya 466-8555, Japan
4Institute for Solid State Physics, University of Tokyo, Tokyo
106-8666, Japan
(Received December 15, 1999; accepted for publication January 11, 2000)
The exchange mechanism of proton and hole in protonic conductor
CaZrO3 has been investigated by photoemission spectroscopy. The
Fermi level is higher by about 1.0 eV through proton doping,
indicating that protons exchange with holes. The defect chemical
calculation proves that the change of the number of the protons,
holes, and the oxygen vacancies by the proton doping accords with
the photoemission process.
URL:
http://jjap.jsap.jp/link?JJAP/39/L133/
DOI: 10.1143/JJAP.39.L133
- H. Iwahara, T. Esaka, H. Uchida and N. Maeda: Solid State Ionics 3–4 (1980) 359.
- S. Shin, H. H. Huang, M. Ishigame and H. Iwahara: Solid State Ionics 40/41 (1990) 910.
- T. Yajima, H. Iwahara, N. Taketsu and K. Koide: Kei-Kinzoku 42 (1992) 263 [in Japanese].
- N. Kurita, N. Fukatsu, K. Ito and T. Ohashi: J. Electrochem. Soc. 142 (1995) 1552.
- K. Kobayashi: Dr. Thesis, Nagoya Institute of Technology, 1998.
- N. Sata, K. Hiramoto, M. Ishigame, S. Hosoya, N. Niimura and S. Shin:
Phys. Rev. B 54 (1996) 15795[APS].
- F. Shimojo, K. Hoshino and H. Okazaki: J. Phys. Soc. Jpn. 65 (1996) 1143.
- N. Sata, M. Ishigame and S. Shin: Solid State Ionics 86 (1996) 629.
- T. Higuchi, T. Tsukamoto, N. Sata, M. Ishigame, Y. Tezuka and S. Shin:
Phys. Rev. B 57 (1998) 6978[APS].
- T. Higuchi, T. Tsukamoto, N. Sata, M. Ishigame, Y. Tezuka and S. Shin: Solid State Ionics 108 (1998) 349.
- M. Matsumoto, K. Soda, K. Ichikawa, Y. Taguchi, K. Jouda, M. Kageyama. S. Tanaka, N. Sata, Y. Tezuka, S. Shin, S. Kimura and O. Aida: J. Electron Relat. Phenom. 78 (1996) 179.
- S. Shin, A. Agui, Y. Tezuka, T. Ishii, Y. Minagawa, Y. Suda, A. Ebina, O. Mishima and K. Era:
Phys. Rev. B 52 (1995) 11853[APS].
- J. J. Yeh and I. Lindau: Atomic Data & Nuclear Data Tables 32 (1993) 1.
- K. Hiramoto: unpublished.
- S. Yamaguchi, K. Kobayashi and Y. Iguchi: to be published in Solid State Ionics (1999).
- K. Kobayashi, S. Yamaguchi and Y. Iguchi: Solid State Ionics 108 (1998) 355.
- A. Kröger and H. J. Vink: Solid State Physics, eds. F. Seitz and D. Turnbull (Academic Press, New York, 1956) Vol. 3, p. 307.