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2012 | 121 | 2 | 307-309
Article title

Femtosecond Reflection Spectroscopy in La_{1.5}Sr_{0.5}CoO_4

Content
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Languages of publication
EN
Abstracts
EN
Ultrafast optical response has been investigated using fs laser system on a perovskite-type cobalt oxide, La_{1.5}Sr_{0.5}CoO_4. After the photoirradiation at room temperature, the time profile of relative change of reflectance (Δ R/R) shows a sudden change within the pulse duration ( ≈ 150 fs) and decays with a lifetime of ≈ 330 fs. The sign of Δ R/R after the photoexcitation is positive in the mid-infrared region (at 0.50 eV) while negative in the visible energy region (at 2.0 eV), implying photoinduced change of the electronic structure after the photoexcitation.
Keywords
EN
Year
Volume
121
Issue
2
Pages
307-309
Physical description
Dates
published
2012-02
References
  • [1] For a review, Photoinduced Phase Transitions, Ed. K. Nasu, World Sci., Singapore 2004
  • [2] K. Miyano, T. Tanaka, Y. Tomioka, Y. Tokura, Phys. Rev. Lett. 78, 4257 (1997)
  • [3] M. Rini, R. Tobey, N. Dean, J. Itatani, Y. Tomioka, Y. Tokura, R.W. Shoenlein, A. Cavalleri, Nature 449, 72 (2007); D. Polli, M. Rini, S. Wall, R.W. Shoenlein, Y. Tomioka, Y. Tokura, G. Cerullo, A. Cavalleri, Nature Mater. 6, 643 (2007)
  • [4] Y. Okimoto, X. Peng, M. Tamura, T. Morita, K. Onda, T. Ishikawa, S. Koshihara, N. Todoroki, T. Kyomen, M. Ito, Phys. Rev. Lett. 103, 027402 (2009)
  • [5] Y. Okimoto, M. Kurashima, K. Seko, T. Ishikawa, K. Onda, T. Ishikawa, S. Koshihara, T. Kyomen, M. Ito, Phys. Rev. B 83, 161101 (2011)
  • [6] I.A. Zaliznyak, J.P. Hill, J.M. Tranquada, R. Erwin, Y. Moritomo, Phys. Rev. Lett. 85, 4353 (2000)
  • [7] C.F. Chang, Z. Hu, Hua Wu, T. Burnus, N. Hollmann, M. Benomar, T. Lorenz, A. Tanaka, H.-J. Lin, H.H. Hsieh, C.T. Chen, L.H. Tjeng, Phys. Rev. Lett. 102, 116401 (2009)
  • [8] L.M. Helme, A.T. Boothroyd, R. Coldea, D. Prabhakaran, C.D. Frost, D.A. Keen, L.P. Regnault, P.G. Freeman, M. Enderle, J. Kuld, Phys. Rev. B 80, 134414 (2009)
  • [9] H. Wu, T. Burnus, Phys. Rev. B 80, 081105(R) (2009)
  • [10] H. Okamoto, T. Miyagoe, K. Kobayashi, H. Uemura, H. Nishioka, H. Matsuzaki, A. Sawa, Y. Tokura, Phys. Rev. B 83, 125102 (2011)
  • [11] Y. Okimoto, T. Miyata, M.S. Endo, M. Kurashima, K. Onda, T. Ishikawa, S. Koshihara, M. Lorenc, E. Collet, H. Cailleau, T. Arima, Phys. Rev. B 84, 121102(R) (2011)
  • [12] Y. Kanamori, H. Matsueda, S. Ishihara, Phys. Rev. Lett. 107, 167403 (2011)
Document Type
Publication order reference
YADDA identifier
bwmeta1.element.bwnjournal-article-appv121n202kz
Identifiers
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