TY - JOUR
T1 - Photoinduced insulator-metal transition in Pr0.5Ca 0.5CoO3 as studied by femtosecond spectroscopy
AU - Okimoto, Yoichi
AU - Peng, Xianzhou
AU - Tamura, Mieko
AU - Morita, Takaaki
AU - Onda, Ken
AU - Ishikawa, Tadahiko
AU - Koshihara, Shin Ya
AU - Todoroki, Naoyuki
AU - Kyomen, Toru
AU - Itoh, Mitsuru
PY - 2009
Y1 - 2009
N2 - Ultrafast optical response has been investigated using fs laser system on a perovskite-type cobalt oxide, Pr0.5Ca0.5CoO3 which undergoes the insulator-metal transition at 89 K. After the photo-irradiation at 30 K, the reflectivity shows a sudden increase. The ultrafast reflectance changes are quantitatively reproduced by the numerical calculation considering the linear combination of the dielectric functions of the initial insulating and the final metallic state, indicating ultrafast phase transition on the time scale of femtosecond.
AB - Ultrafast optical response has been investigated using fs laser system on a perovskite-type cobalt oxide, Pr0.5Ca0.5CoO3 which undergoes the insulator-metal transition at 89 K. After the photo-irradiation at 30 K, the reflectivity shows a sudden increase. The ultrafast reflectance changes are quantitatively reproduced by the numerical calculation considering the linear combination of the dielectric functions of the initial insulating and the final metallic state, indicating ultrafast phase transition on the time scale of femtosecond.
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U2 - 10.1088/1742-6596/148/1/012019
DO - 10.1088/1742-6596/148/1/012019
M3 - Article
AN - SCOPUS:67650661145
VL - 148
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
SN - 1742-6588
M1 - 012019
ER -