Lattice Dynamics of Laser Excited Ferroelectric BaTiO3

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2012
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Issenmann, Daniel
Schleef, Stefan
Ibrahimkutty, Shyjumon
Buth, Gernot
Baumbach, Tilo
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https://doi.org/10.12693/APhysPolA.121.319
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Acta Physica Polonica A. Polish Academy of Sciences. 2012, 121(2), pp. 319-323. ISSN 0587-4246. eISSN 1898-794X. Available under: doi: 10.12693/APhysPolA.121.319
Zusammenfassung

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.

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ISO 690ISSENMANN, Daniel, Stefan SCHLEEF, Shyjumon IBRAHIMKUTTY, Gernot BUTH, Tilo BAUMBACH, Anton PLECH, Markus BEYER, Jure DEMSAR, 2012. Lattice Dynamics of Laser Excited Ferroelectric BaTiO3. In: Acta Physica Polonica A. Polish Academy of Sciences. 2012, 121(2), pp. 319-323. ISSN 0587-4246. eISSN 1898-794X. Available under: doi: 10.12693/APhysPolA.121.319
BibTex
@article{Issenmann2012Latti-49273,
  year={2012},
  doi={10.12693/APhysPolA.121.319},
  title={Lattice Dynamics of Laser Excited Ferroelectric BaTiO<sub>3</sub>},
  number={2},
  volume={121},
  issn={0587-4246},
  journal={Acta Physica Polonica A},
  pages={319--323},
  author={Issenmann, Daniel and Schleef, Stefan and Ibrahimkutty, Shyjumon and Buth, Gernot and Baumbach, Tilo and Plech, Anton and Beyer, Markus and Demsar, Jure}
}
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