Geometry of electromechanically active structures in Gadolinium - doped Cerium oxides

Geometry of electromechanically active structures in Gadolinium - doped Cerium oxides

Local distortions from average structure are important in many functional materials, such as electrostrictors or piezoelectrics, and contain clues about their mechanism of work. However, the geometric attributes of these distortions are exceedingly difficult to measure, leading to a gap in knowledge...

Full description

Bibliographic Details
Main Authors: Yuanyuan Li, Olga Kraynis, Joshua Kas, Tsu-Chien Weng, Dimosthenis Sokaras, Renee Zacharowicz, Igor Lubomirsky, Anatoly I. Frenkel
Format: Article
Language:English
Published: AIP Publishing LLC 2016-05-01
Series:AIP Advances
Online Access:http://dx.doi.org/10.1063/1.4952645
id doaj-ddec7f1a563b4efbab8bfa7dfb8920ce
record_format Article
spelling doaj-ddec7f1a563b4efbab8bfa7dfb8920ce2020-11-25T02:16:55ZengAIP Publishing LLCAIP Advances2158-32262016-05-0165055320055320-710.1063/1.4952645076605ADVGeometry of electromechanically active structures in Gadolinium - doped Cerium oxidesYuanyuan Li0Olga Kraynis1Joshua Kas2Tsu-Chien Weng3Dimosthenis Sokaras4Renee Zacharowicz5Igor Lubomirsky6Anatoly I. Frenkel7Physics Department, Yeshiva University, 245 Lexington Avenue, New York, New York 10016, USADepartment of Materials and Interfaces, Weizmann Institute of Science, Rehovot 76100, IsraelDepartment of Physics, University of Washington, Seattle, Washington 98195, USAStanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USAStanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USAPhysics Department, Yeshiva University, 245 Lexington Avenue, New York, New York 10016, USADepartment of Materials and Interfaces, Weizmann Institute of Science, Rehovot 76100, IsraelPhysics Department, Yeshiva University, 245 Lexington Avenue, New York, New York 10016, USALocal distortions from average structure are important in many functional materials, such as electrostrictors or piezoelectrics, and contain clues about their mechanism of work. However, the geometric attributes of these distortions are exceedingly difficult to measure, leading to a gap in knowledge regarding their roles in electromechanical response. This task is particularly challenging in the case of recently reported non-classical electrostriction in Cerium-Gadolinium oxides (CGO), where only a small population of Ce-O bonds that are located near oxygen ion vacancies responds to external electric field. We used high-energy resolution fluorescence detection (HERFD) technique to collect X-ray absorption spectra in CGO in situ, with and without an external electric field, coupled with theoretical modeling to characterize three-dimensional geometry of electromechanically active units.http://dx.doi.org/10.1063/1.4952645
collection DOAJ
language English
format Article
sources DOAJ
author Yuanyuan Li
Olga Kraynis
Joshua Kas
Tsu-Chien Weng
Dimosthenis Sokaras
Renee Zacharowicz
Igor Lubomirsky
Anatoly I. Frenkel
spellingShingle Yuanyuan Li
Olga Kraynis
Joshua Kas
Tsu-Chien Weng
Dimosthenis Sokaras
Renee Zacharowicz
Igor Lubomirsky
Anatoly I. Frenkel
Geometry of electromechanically active structures in Gadolinium - doped Cerium oxides
AIP Advances
author_facet Yuanyuan Li
Olga Kraynis
Joshua Kas
Tsu-Chien Weng
Dimosthenis Sokaras
Renee Zacharowicz
Igor Lubomirsky
Anatoly I. Frenkel
author_sort Yuanyuan Li
title Geometry of electromechanically active structures in Gadolinium - doped Cerium oxides
title_short Geometry of electromechanically active structures in Gadolinium - doped Cerium oxides
title_full Geometry of electromechanically active structures in Gadolinium - doped Cerium oxides
title_fullStr Geometry of electromechanically active structures in Gadolinium - doped Cerium oxides
title_full_unstemmed Geometry of electromechanically active structures in Gadolinium - doped Cerium oxides
title_sort geometry of electromechanically active structures in gadolinium - doped cerium oxides
publisher AIP Publishing LLC
series AIP Advances
issn 2158-3226
publishDate 2016-05-01
description Local distortions from average structure are important in many functional materials, such as electrostrictors or piezoelectrics, and contain clues about their mechanism of work. However, the geometric attributes of these distortions are exceedingly difficult to measure, leading to a gap in knowledge regarding their roles in electromechanical response. This task is particularly challenging in the case of recently reported non-classical electrostriction in Cerium-Gadolinium oxides (CGO), where only a small population of Ce-O bonds that are located near oxygen ion vacancies responds to external electric field. We used high-energy resolution fluorescence detection (HERFD) technique to collect X-ray absorption spectra in CGO in situ, with and without an external electric field, coupled with theoretical modeling to characterize three-dimensional geometry of electromechanically active units.
url http://dx.doi.org/10.1063/1.4952645
work_keys_str_mv AT yuanyuanli geometryofelectromechanicallyactivestructuresingadoliniumdopedceriumoxides
AT olgakraynis geometryofelectromechanicallyactivestructuresingadoliniumdopedceriumoxides
AT joshuakas geometryofelectromechanicallyactivestructuresingadoliniumdopedceriumoxides
AT tsuchienweng geometryofelectromechanicallyactivestructuresingadoliniumdopedceriumoxides
AT dimosthenissokaras geometryofelectromechanicallyactivestructuresingadoliniumdopedceriumoxides
AT reneezacharowicz geometryofelectromechanicallyactivestructuresingadoliniumdopedceriumoxides
AT igorlubomirsky geometryofelectromechanicallyactivestructuresingadoliniumdopedceriumoxides
AT anatolyifrenkel geometryofelectromechanicallyactivestructuresingadoliniumdopedceriumoxides
_version_ 1724888273202970624

Similar Items