- Tytuł:
- Femtosecond Reflection Spectroscopy in $La_{1.5}Sr_{0.5}CoO_4$
- Autorzy:
-
Egawa, T.
Okimoto, Y.
Fukaya, R.
Onda, K.
Ishikawa, T.
Koshihara, S.
Isayama, A.
Sasagawa, T. - Powiązania:
- https://bibliotekanauki.pl/articles/1489953.pdf
- Data publikacji:
- 2012-02
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
78.47.J-
78.47.jg - Opis:
- 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.
- Źródło:
-
Acta Physica Polonica A; 2012, 121, 2; 307-309
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł