Photoinduced Phase Transition in Pr_{0.5}Ca_{0.5}CoO_3 Studied by Sequential Pulse Excitations

• Authors: K. Seko , Y. Okimoto , M. Kurashima , R. Fukaya , T. Egawa , T. Ishikawa , K. Onda , S. Koshihara , T. Kyomen , M. Itoh
• Languages of publication: EN

Abstracts

EN

A perovskite-type cobalt oxide, Pr_{0.5}Ca_{0.5}CoO_3 (PCCO), shows photoinduced phase transition. In this study, we successively irradiated two laser pulses with different intensities to PCCO and probed the transient change of the reflection at 2.0 eV. Assuming propagation of the two different photoinduced metallic states, we could reproduce the time profiles as well as the magnitude in the reflectance change, indicating the fabrication of the photoinduced multilayered thin film in Pr_{0.5}Ca_{0.5}CoO_3.

Keywords

EN

78.66.-w; 78.47.jg

Discipline

• 78.66.-w: Optical properties of specific thin films(for optical properties of low-dimensional, mesoscopic, and nanoscale materials, see 78.67.-n; for optical properties of surfaces, see 78.68.+m)
• 78.47.jg: Time resolved reflection spectroscopy

• Journal: Acta Physica Polonica A
• Year: 2012
• Volume: 121
• Issue: 2
• Pages: 369-371

Dates

published

2012-02

Contributors

author

K. Seko

• Department of Materials Science, Tokyo Institute of Technology, Tokyo 152-8551, Japan

author

Y. Okimoto

• Department of Materials Science, Tokyo Institute of Technology, Tokyo 152-8551, Japan

author

M. Kurashima

• Department of Materials Science, Tokyo Institute of Technology, Tokyo 152-8551, Japan

author

R. Fukaya

• CREST, JST, Meguro-ku, Tokyo 152-8551, Japan

author

T. Egawa

• Department of Materials Science, Tokyo Institute of Technology, Tokyo 152-8551, Japan

author

T. Ishikawa

• Department of Materials Science, Tokyo Institute of Technology, Tokyo 152-8551, Japan

author

K. Onda

• Department of Environ. Chem. and Engineering, Tokyo Institute of Technology, Nagatsuta Yokohama, 226-8503, Japan

author

S. Koshihara

• Department of Materials Science, Tokyo Institute of Technology, Tokyo 152-8551, Japan
• CREST, JST, Meguro-ku, Tokyo 152-8551, Japan

author

T. Kyomen

• Department of Chemistry and Chemical Biology, Gunma Univ., Gumna, 376-8515, Japan

author

M. Itoh

• Materials and Structures Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta Yokohama, 226-8503, Japan

References

• [1] For a comprehensive review, see Photoinduced Phase Transitions, Ed. K. Nasu, World Sci., Singapore 2004
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• [3] S. Tsubouchi, T. Kyomen, M. Itoh, P. Ganguly, M. Oguni, Y. Shimojo, Y. Morii, Y. Ishi, Phys. Rev. B 66, 052418 (2002); S. Tsubouchi, T. Kyomen, M. Itoh, M. Oguni, Phys. Rev. B 69, 144406 (2004)
• [4] D.A.G. Bruggeman, Ann. Phys. (Leipzig) 24, 636 (1935)
• [5] For example, D.J. Hilton, R.P. Prasankumer, S. Fourmaux, A. Cavalleri, D. Brassard, M.A. El Khakani, J.C. Kieffer, A.J. Taylor, R.D. Averitt, Phys. Rev. Lett. 99, 226401 (2007)
• [6] Y. Okimoto, M. Kurashima, K. Seko, T. Ishikawa, K. Onda, T. Ishikawa, S. Koshihara, T. Kyomen, M. Ito, Phys. Rev. B 83, 161101 (2011)

Identifiers

DOI

10.12693/APhysPolA.121.369