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Title: Dynamic Field Modulation of the Octahedral Framework in Metal Oxide Heterostructures.

Abstract

Control over the oxygen octahedral framework is widely recognized as key to the design of functional properties in perovskite oxide heterostructures. Although the oxygen octahedral framework can be manipulated during synthesis, the as-grown oxygen octahedra generally remain fixed, preventing the development of adaptive behavior in electronic and ionotronic systems. Here, it is demonstrated that the oxygen octahedral framework can be dynamically and reversibly manipulated by an electric field through the coupling with oxygen vacancies. Studying model WO3 heterostructures during ionic liquid gating with a combination of in situ X-ray scattering and spectroscopy, it is shown that large changes in electronic properties can arise due to the increased flexibility of the octahedral network at high vacancy concentrations. The results describe a generic framework for the construction of dynamic systems and devices with an array of field-tunable properties.

Authors:
; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); USDOE Office of Science - Office of Basic Energy Sciences - Materials Sciences and Engineering Division
OSTI Identifier:
1490425
Alternate Identifier(s):
OSTI ID: 1479586
Grant/Contract Number:  
AC02-06CH11357; AC02- 06CH11357
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Advanced Materials
Additional Journal Information:
Journal Volume: 30; Journal Issue: 52
Country of Publication:
United States
Language:
English
Subject:
WO3; ionic liquid gating; metal-insulator transition; oxygen octahedral rotation; x-ray scattering and spectroscopy

Citation Formats

Liu, Huajun, Dong, Yongqi, Xu, Dongwei, Karapetrova, Evguenia A., Lee, Sungsik, Stan, Liliana, Zapol, Peter, Zhou, Hua, and Fong, Dillon D. Dynamic Field Modulation of the Octahedral Framework in Metal Oxide Heterostructures.. United States: N. p., 2018. Web. doi:10.1002/adma.201804775.
Liu, Huajun, Dong, Yongqi, Xu, Dongwei, Karapetrova, Evguenia A., Lee, Sungsik, Stan, Liliana, Zapol, Peter, Zhou, Hua, & Fong, Dillon D. Dynamic Field Modulation of the Octahedral Framework in Metal Oxide Heterostructures.. United States. doi:10.1002/adma.201804775.
Liu, Huajun, Dong, Yongqi, Xu, Dongwei, Karapetrova, Evguenia A., Lee, Sungsik, Stan, Liliana, Zapol, Peter, Zhou, Hua, and Fong, Dillon D. Thu . "Dynamic Field Modulation of the Octahedral Framework in Metal Oxide Heterostructures.". United States. doi:10.1002/adma.201804775.
@article{osti_1490425,
title = {Dynamic Field Modulation of the Octahedral Framework in Metal Oxide Heterostructures.},
author = {Liu, Huajun and Dong, Yongqi and Xu, Dongwei and Karapetrova, Evguenia A. and Lee, Sungsik and Stan, Liliana and Zapol, Peter and Zhou, Hua and Fong, Dillon D.},
abstractNote = {Control over the oxygen octahedral framework is widely recognized as key to the design of functional properties in perovskite oxide heterostructures. Although the oxygen octahedral framework can be manipulated during synthesis, the as-grown oxygen octahedra generally remain fixed, preventing the development of adaptive behavior in electronic and ionotronic systems. Here, it is demonstrated that the oxygen octahedral framework can be dynamically and reversibly manipulated by an electric field through the coupling with oxygen vacancies. Studying model WO3 heterostructures during ionic liquid gating with a combination of in situ X-ray scattering and spectroscopy, it is shown that large changes in electronic properties can arise due to the increased flexibility of the octahedral network at high vacancy concentrations. The results describe a generic framework for the construction of dynamic systems and devices with an array of field-tunable properties.},
doi = {10.1002/adma.201804775},
journal = {Advanced Materials},
number = 52,
volume = 30,
place = {United States},
year = {Thu Dec 27 00:00:00 EST 2018},
month = {Thu Dec 27 00:00:00 EST 2018}
}

Journal Article:
Free Publicly Available Full Text
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