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Title: Light-activated Gigahertz Ferroelectric Domain Dynamics

Using time- and spatially-resolved hard X-ray diffraction microscopy, the striking structural and electrical dynamics upon optical excitation of a single crystal of BaTiO 3 are simultaneously captured on sub-nanoseconds and nanoscale within individual ferroelectric domains and across walls. A large emergent photo-induced electric field of up to 20 million volts per meter is discovered in a surface layer of the crystal, which then drives polarization and lattice dynamics that are dramatically distinct in a surface layer versus bulk regions. A dynamical phase-field modeling (DPFM) method is developed that reveals the microscopic origin of these dynamics, leading to GHz polarization and elastic waves travelling in the crystal with sonic speeds and spatially varying frequencies. The advance of spatiotemporal imaging and dynamical modeling tools open opportunities of disentangling ultrafast processes in complex mesoscale structures such as ferroelectric domains
Authors:
 [1] ;  [1] ;  [2] ;  [1] ;  [1] ;  [1] ;  [1] ;  [3] ;  [1] ;  [3] ;  [1] ;  [3] ;  [4]
  1. Pennsylvania State Univ., University Park, PA (United States). Materials Research Inst. and Dept. of Materials Science and Engineering
  2. Pennsylvania State Univ., University Park, PA (United States). Materials Research Inst. and Dept. of Materials Science and Engineering; Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
  3. Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
  4. Pennsylvania State Univ., University Park, PA (United States). Materials Research Inst. and Dept. of Materials Science and Engineering; Pennsylvania State Univ., University Park, PA (United States). Dept. of Physics
Publication Date:
Grant/Contract Number:
AC02-06CH11357; SC0012375; DMR-1420620; DMR-1410714
Type:
Accepted Manuscript
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 120; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Research Org:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org:
National Science Foundation (NSF); USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 77 NANOSCIENCE AND NANOTECHNOLOGY
OSTI Identifier:
1426228
Alternate Identifier(s):
OSTI ID: 1422652

Akamatsu, Hirofumii, Yuan, Yakun, Stoica, Vladimir A., Stone, Greg, Yang, Tiannan, Hong, Zijian, Lei, Shiming, Zhu, Yi, Haislmaier, Ryan C., Freeland, John W., Chen, Long-Qing, Wen, Haidan, and Gopalan, Venkatraman. Light-activated Gigahertz Ferroelectric Domain Dynamics. United States: N. p., Web. doi:10.1103/PhysRevLett.120.096101.
Akamatsu, Hirofumii, Yuan, Yakun, Stoica, Vladimir A., Stone, Greg, Yang, Tiannan, Hong, Zijian, Lei, Shiming, Zhu, Yi, Haislmaier, Ryan C., Freeland, John W., Chen, Long-Qing, Wen, Haidan, & Gopalan, Venkatraman. Light-activated Gigahertz Ferroelectric Domain Dynamics. United States. doi:10.1103/PhysRevLett.120.096101.
Akamatsu, Hirofumii, Yuan, Yakun, Stoica, Vladimir A., Stone, Greg, Yang, Tiannan, Hong, Zijian, Lei, Shiming, Zhu, Yi, Haislmaier, Ryan C., Freeland, John W., Chen, Long-Qing, Wen, Haidan, and Gopalan, Venkatraman. 2018. "Light-activated Gigahertz Ferroelectric Domain Dynamics". United States. doi:10.1103/PhysRevLett.120.096101.
@article{osti_1426228,
title = {Light-activated Gigahertz Ferroelectric Domain Dynamics},
author = {Akamatsu, Hirofumii and Yuan, Yakun and Stoica, Vladimir A. and Stone, Greg and Yang, Tiannan and Hong, Zijian and Lei, Shiming and Zhu, Yi and Haislmaier, Ryan C. and Freeland, John W. and Chen, Long-Qing and Wen, Haidan and Gopalan, Venkatraman},
abstractNote = {Using time- and spatially-resolved hard X-ray diffraction microscopy, the striking structural and electrical dynamics upon optical excitation of a single crystal of BaTiO3 are simultaneously captured on sub-nanoseconds and nanoscale within individual ferroelectric domains and across walls. A large emergent photo-induced electric field of up to 20 million volts per meter is discovered in a surface layer of the crystal, which then drives polarization and lattice dynamics that are dramatically distinct in a surface layer versus bulk regions. A dynamical phase-field modeling (DPFM) method is developed that reveals the microscopic origin of these dynamics, leading to GHz polarization and elastic waves travelling in the crystal with sonic speeds and spatially varying frequencies. The advance of spatiotemporal imaging and dynamical modeling tools open opportunities of disentangling ultrafast processes in complex mesoscale structures such as ferroelectric domains},
doi = {10.1103/PhysRevLett.120.096101},
journal = {Physical Review Letters},
number = ,
volume = 120,
place = {United States},
year = {2018},
month = {2}
}