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Lengths of ferroelectric domains: The role of defects and random fields

Voelker, Uwe and Dinges, Kai and Heine , Urs and Betzler , Klaus (2010) Lengths of ferroelectric domains: The role of defects and random fields. Physical Review B, 81 (21), pp. 214104-1. DOI: 10.1103/PhysRevB.81.214104.

Full text not available from this repository.

Official URL: http://link.aps.org/doi/10.1103/PhysRevB.81.214104

Abstract

Using noncollinear optical second-harmonic generation, the characteristic lengths of ferroelectric domains in strontium-barium niobate are determined. The role of the domain geometry in the random quasiphase matching process involved is elucidated by model calculations on different domain arrangements. The calculations prove that the domain geometries—especially the domain lengths—strongly affect the angular distribution of the generated second-harmonic light. The evaluation of the measured angular distributions in crystals with different doping concentrations shows that the domain lengths are distinctly albeit not drastically influenced by the dopant-induced random electric or strain fields.

Document Type:Article
Title:Lengths of ferroelectric domains: The role of defects and random fields
Authors:
AuthorsInstitution or Email of Authors
Voelker, UweInstitut für Technische Physik, Deutsches Zentrum für Luft- und Raumfahrt, D-70569 Stuttgart, Germany
Dinges, KaiFachbereich Physik, Universität Osnabrück, D-49069 Osnabrück, Germany
Heine , UrsFachbereich Physik, Universität Osnabrück, D-49069 Osnabrück, Germany
Betzler , KlausFachbereich Physik, Universität Osnabrück, D-49069 Osnabrück, Germany
Date:7 June 2010
Journal or Publication Title:Physical Review B
Refereed publication:Yes
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:81
DOI:10.1103/PhysRevB.81.214104
Page Range:pp. 214104-1
Status:Published
Keywords:Frequency conversion, SHG, quasi phase matching, random media, ferroelectric domains
HGF - Research field:other
HGF - Program:other
HGF - Program Themes:other
DLR - Research area:no assignement
DLR - Program:no assignment
DLR - Research theme (Project):other
Location: Stuttgart
Institutes and Institutions:Institute of Technical Physics
Deposited By: Uwe Völker
Deposited On:17 Jul 2010 22:39
Last Modified:26 Mar 2013 13:18

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