Titre du document / Document title
Phonon scattering from ferroelectric domain walls : phonon imaging in KDP
Auteur(s) / Author(s)
WEILERT M. A. ;
MSALL M. E. ;
ANDERSON A. C. ;
WOLFE J. P. ;
Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)
Univ. Illinois Urbana-Champaign, physics dep., materials res. lab., Urbana IL 61801, ETATS-UNIS
Résumé / Abstract
The ferroelectric domain wall is an ideal interface for studies of the boundary scattering of high frequency acoustic phonons. These internal interfaces have no contamination and can be reversibly created and destroyed by application of an electric field at the phase transition- 122 K in KDP. Images of phonons in single- and multiple-domain cases show remarkable differences in the ballistic heat flux. Theoretical modeling based on acoustic wave reflection reveals that the domain walls act as nearly perfect grain boundaries
Revue / Journal Title
Physical review letters
ISSN
0031-9007
CODEN PRLTAO
Source / Source
1993, vol. 71, n
o5, pp. 735-738 (14 ref.)
Langue / Language
Anglais
Editeur / Publisher
American Physical Society, Ridge, NY, ETATS-UNIS
(1958)
(Revue)
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Localisation / Location
INIST-CNRS, Cote INIST : 8895, 35400003528230.0180
Nº notice refdoc (ud4) : 4898562
