@article{7e3dfe1715cb4930a1aa1fa7c22242ca,
title = "Light-Driven Ultrafast Polarization Manipulation in a Relaxor Ferroelectric",
abstract = "Relaxor ferroelectrics have been intensely studied for decades based on their unique electromechanical responses which arise from local structural heterogeneity involving polar nanoregions or domains. Here, we report first studies of the ultrafast dynamics and reconfigurability of the polarization in freestanding films of the prototypical relaxor 0.68PbMg1/3Nb2/3O3-0.32PbTiO3(PMN-0.32PT) by probing its atomic-scale response via femtosecond-resolution, electron-scattering approaches. By combining these structural measurements with dynamic phase-field simulations, we show that femtosecond light pulses drive a change in both the magnitude and direction of the polarization vector within polar nanodomains on few-picosecond time scales. This study defines new opportunities for dynamic reconfigurable control of the polarization in nanoscale relaxor ferroelectrics.",
keywords = "electron diffraction, ferroelectrics, structural dynamics, ultrafast",
author = "Suji Park and Bo Wang and Tiannan Yang and Jieun Kim and Sahar Saremi and Wenbo Zhao and Burak Guzelturk and Aditya Sood and Clara Nyby and Marc Zajac and Xiaozhe Shen and Michael Kozina and Reid, {Alexander H.} and Stephen Weathersby and Xijie Wang and Martin, {Lane W.} and Chen, {Long Qing} and Lindenberg, {Aaron M.}",
note = "Funding Information: This work was primarily supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Award Number DE-SC-0012375. SLAC MeV-UED is supported in part by the DOE BES SUF Division Accelerator & Detector R&D program, the LCLS Facility, and SLAC under Contract Nos. DE-AC02–05-CH11231 and DE-AC02–76SF00515. B.G., A.S., C.N., and M.Z. acknowledge support by the Department of Energy, Office of Science, Office of Basic Energy Sciences, under contract DE-AC02-76SF00515. The work at UC Berkeley acknowledges the support of the Army Research Office under grant W911NF-21-1-0118, the National Science Foundation under grant DMR-2102895, and the Collaborative for Hierarchical Agile and Responsive Materials (CHARM) under cooperative agreement W911NF-19-2-0119. B.W. acknowledges support by the National Science Foundation (NSF) through Grant No. DMR-1744213. T.Y. and L.-Q.C. are supported as part of the Computational Materials Sciences Program funded by the U.S. Department of Energy, Office of Science, Basic Energy Sciences, under Award No. DE-SC0020145. Publisher Copyright: {\textcopyright} 2022 American Chemical Society. All rights reserved.",
year = "2022",
month = dec,
day = "14",
doi = "10.1021/acs.nanolett.2c02706",
language = "English (US)",
volume = "22",
pages = "9275--9282",
journal = "Nano Letters",
issn = "1530-6984",
publisher = "American Chemical Society",
number = "23",
}