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Light-induced Modulation of Ferroelectric Polarization Probed Using Time-Resolved X-ray Scattering

D. Daranciang, H. Wen, M. Highland, B. Perkins, N. Brandt, K. Nelson, J. Larsson, D. Walko, E. Dufresne, P. Fuoss, B. Stephenson, and A.M. Lindenberg

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Abstract

Time-resolved x-ray diffraction techniques are used to visualize atomic-scale displacements within the unit cell of the nanoscale ferroelectric PbTiO3. A picosecond all-optically-induced polarization modulation is observed, associated with a large-amplitude carrier-induced increase in the polarization.

© 2010 Optical Society of America

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