Phonon scattering from ferroelectric domain walls: phonon imaging from KDP

Phonon scattering from ferroelectric domain walls: phonon imaging from KDP

Domain walls can be reversibly created and destroyed by applying an electric field at 122 K in KDP. Images of phonons in singl- and multipl -domains show differences in ballistic heat flux. The walls act as nearly perfect grain boundaries.

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Veröffentlicht in:Physical review letters 1993-01, Vol.71 (5), p.735-738
Hauptverfasser: Weilert, M A, Msall, M E, Anderson, A C, Wolfe, J P
Format: Artikel
Sprache:eng
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Zusammenfassung:Domain walls can be reversibly created and destroyed by applying an electric field at 122 K in KDP. Images of phonons in singl- and multipl -domains show differences in ballistic heat flux. The walls act as nearly perfect grain boundaries.
ISSN:0031-9007