Ferroelectric soft mode in a SrTiO3 thin film impulsively driven to the anharmonic regime using intense picosecond terahertz pulses

The ferroelectric soft mode in a SrTiO(3) thin film was impulsively driven to a large amplitude using intense picosecond terahertz pulses. As the terahertz electric field increased, the soft-mode absorption peak exhibited blueshifting and spectral narrowing. A classical anharmonic oscillator model s...

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Veröffentlicht in:	Physical review letters 2012-03, Vol.108 (9), p.097401-097401
Hauptverfasser:	Katayama, I, Aoki, H, Takeda, J, Shimosato, H, Ashida, M, Kinjo, R, Kawayama, I, Tonouchi, M, Nagai, M, Tanaka, K
Format:	Artikel
Sprache:	eng
Online-Zugang:	Volltext
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