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Acoustically driven ferroelastic domain switching observed by time-resolved x-ray diffraction

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Author

Summary, in English

Domain polarization switching in potassium dihydrogen phosphate (KH2PO4, KDP) induced by a propagating strain wave has been observed with time-resolved x-ray diffraction. A pulsed electric field with amplitude of 6 kV/cm and duration of 1 mu s was applied along the crystallographic c axis. The field-induced strain waves emanating from the sample surfaces are the result of the converse piezoelectric effect. In the center of the probed surface two waves interfered constructively inducing ferroelastic domain switching, in the absence of an external electric field, at a delay of 3 mu s, corresponding to acoustic propagation at a velocity found to be 1500 m/s.

Publishing year

2010

Language

English

Publication/Series

Physical Review B (Condensed Matter and Materials Physics)

Volume

81

Issue

2

Document type

Journal article

Publisher

American Physical Society

Topic

  • Atom and Molecular Physics and Optics
  • Natural Sciences
  • Physical Sciences

Status

Published

ISBN/ISSN/Other

  • ISSN: 1098-0121