Geometry of electromechanically active structures in Gadolinium - doped Cerium oxides
Abstract
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. In this study, 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.
- Authors:
- Publication Date:
- Research Org.:
- SLAC National Accelerator Lab., Menlo Park, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC)
- OSTI Identifier:
- 1254031
- Alternate Identifier(s):
- OSTI ID: 1272367; OSTI ID: 1421040
- Grant/Contract Number:
- FG02- 03ER15476; FG02-03ER15476
- Resource Type:
- Published Article
- Journal Name:
- AIP Advances
- Additional Journal Information:
- Journal Name: AIP Advances Journal Volume: 6 Journal Issue: 5; Journal ID: ISSN 2158-3226
- Publisher:
- American Institute of Physics
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE
Citation Formats
Li, Yuanyuan, Kraynis, Olga, Kas, Joshua, Weng, Tsu-Chien, Sokaras, Dimosthenis, Zacharowicz, Renee, Lubomirsky, Igor, and Frenkel, Anatoly I. Geometry of electromechanically active structures in Gadolinium - doped Cerium oxides. United States: N. p., 2016.
Web. doi:10.1063/1.4952645.
Li, Yuanyuan, Kraynis, Olga, Kas, Joshua, Weng, Tsu-Chien, Sokaras, Dimosthenis, Zacharowicz, Renee, Lubomirsky, Igor, & Frenkel, Anatoly I. Geometry of electromechanically active structures in Gadolinium - doped Cerium oxides. United States. https://doi.org/10.1063/1.4952645
Li, Yuanyuan, Kraynis, Olga, Kas, Joshua, Weng, Tsu-Chien, Sokaras, Dimosthenis, Zacharowicz, Renee, Lubomirsky, Igor, and Frenkel, Anatoly I. Sun .
"Geometry of electromechanically active structures in Gadolinium - doped Cerium oxides". United States. https://doi.org/10.1063/1.4952645.
@article{osti_1254031,
title = {Geometry of electromechanically active structures in Gadolinium - doped Cerium oxides},
author = {Li, Yuanyuan and Kraynis, Olga and Kas, Joshua and Weng, Tsu-Chien and Sokaras, Dimosthenis and Zacharowicz, Renee and Lubomirsky, Igor and Frenkel, Anatoly I.},
abstractNote = {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. In this study, 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.},
doi = {10.1063/1.4952645},
journal = {AIP Advances},
number = 5,
volume = 6,
place = {United States},
year = {Sun May 01 00:00:00 EDT 2016},
month = {Sun May 01 00:00:00 EDT 2016}
}
https://doi.org/10.1063/1.4952645
Web of Science
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