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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 WO 3 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. Furthermore, the results describe a generic framework for the construction of dynamic systems and devices with an array of field-tunable properties.

Authors:
ORCiD logo [1];  [2];  [3];  [4];  [4];  [4];  [4];  [4]; ORCiD logo [4]
  1. Argonne National Lab. (ANL), Argonne, IL (United States); A*STAR (Agency for Science, Technology and Research) (Singapore)
  2. Argonne National Lab. (ANL), Argonne, IL (United States); Univ. of Science and Technology of China, Anhui (China)
  3. Argonne National Lab. (ANL), Argonne, IL (United States); Huazhong Univ. of Science and Technology, Hubei (China)
  4. Argonne National Lab. (ANL), Argonne, IL (United States)
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). Materials Sciences & Engineering Division; USDOE
OSTI Identifier:
1490425
Alternate Identifier(s):
OSTI ID: 1479586
Grant/Contract Number:  
AC02-06CH11357
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Advanced Materials
Additional Journal Information:
Journal Volume: 30; Journal Issue: 52; Journal ID: ISSN 0935-9648
Publisher:
Wiley
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 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, 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, 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, Lee, Sungsik, Stan, Liliana, Zapol, Peter, Zhou, Hua, and Fong, Dillon D. Mon . "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 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. Furthermore, 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},
issn = {0935-9648},
number = 52,
volume = 30,
place = {United States},
year = {2018},
month = {10}
}

Journal Article:
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Works referenced in this record:

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