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2012 | 121 | 2 | 319-323
Article title

Lattice Dynamics of Laser Excited Ferroelectric BaTiO_3

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EN
Abstracts
EN
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.
Keywords
Year
Volume
121
Issue
2
Pages
319-323
Physical description
Dates
published
2012-02
References
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Document Type
Publication order reference
YADDA identifier
bwmeta1.element.bwnjournal-article-appv121n206kz
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