- Tytuł:
- Lattice Dynamics of Laser Excited Ferroelectric $BaTiO_3$
- Autorzy:
-
Issenmann, D.
Schleef, S.
Ibrahimkutty, S.
Buth, G.
Baumbach, T.
Plech, A.
Beyer, M.
Demsar, J. - Powiązania:
- https://bibliotekanauki.pl/articles/1489957.pdf
- Data publikacji:
- 2012-02
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
78.47.D-
61.05.cp
77.22.Ej
65.40.De
64.60.Cn - Opis:
- We investigated the lattice dynamics of the prototypic ferroelectric barium titanate close to its ferroelectric-paraelectric phase transition aiming at a better understanding of the atomistic nature of the transition. The usage of time-resolved X-ray techniques allows to disentangle lattice motion and unit cell changes, which, in part, relate to the ferroelectric polarization. In the quasi-static case both the electrical and the laser excitation show a mean-field, simple thermal behaviour, while for time scales shorter than nanoseconds the impulsive nature of the excitation becomes visible.
- Źródło:
-
Acta Physica Polonica A; 2012, 121, 2; 319-323
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł