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Bilateral switching of the modulated electrooptic contrast in PLZTN ceramics (Articolo in rivista)
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- Label
- Bilateral switching of the modulated electrooptic contrast in PLZTN ceramics (Articolo in rivista) (literal)
- Anno
- 2006-01-01T00:00:00+01:00 (literal)
- Alternative label
Tikhomirov, O; Labardi, M; Ascoli, C; Allegrini, M; Galassi, C (2006)
Bilateral switching of the modulated electrooptic contrast in PLZTN ceramics
in Solid state communications (Print)
(literal)
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- Tikhomirov, O; Labardi, M; Ascoli, C; Allegrini, M; Galassi, C (literal)
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- ISI Web of Science (WOS) (literal)
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- CNR, INFM, PolyLab, I-56127 Pisa, Italy; Inst Solid State Phys, Chernogolovka 142432, Moscow Region, Russia; Univ Pisa, Dipartimento Fis Enrico Fermi, I-56127 Pisa, Italy; CNR, ISTEC, I-48018 Faenza, RA, Italy (literal)
- Titolo
- Bilateral switching of the modulated electrooptic contrast in PLZTN ceramics (literal)
- Abstract
- Spatial distribution of ferroelectric polarization in Pb(Zr,Ti)O-3 ceramics doped with lanthanum and niobium has been investigated using scanning electrooptic confocal microscopy. Measurement of the modulated electrooptic signal in presence of a sinusoidal electric field reveals ferroelectric domains at microscopic scale not accessible to conventional polarized optical imaging. Both electrooptic images and local electrooptic loops have been observed after applying a bias electric field to the ceramic samples, being initially non-ferroelectric macroscopically. Bilateral reversal of the electrooptic contrast during the poling cycle has been detected and explained taking into account non-180 degrees switching processes in ferroelectric grains of arbitrary orientation. (c) 2006 Elsevier Ltd. All rights reserved. (literal)
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