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Title: Engineering the oxygen coordination in digital superlattices

Abstract

Here, the oxygen sublattice in the complex oxides is typically composed of corner-shared polyhedra, with transition metals at their centers. The electronic and chemical properties of the oxide depend on the type and geometric arrangement of these polyhedra, which can be controlled through epitaxial synthesis. Here, we use oxide molecular beam epitaxy to create SrCoO x:SrTiO 3 superlattices with tunable oxygen coordination environments and sublattice geometries. Using soft X-ray spectroscopy, we find that the chemical state of Co can be varied with the polyhedral arrangement, demonstrating a new strategy for achieving unique electronic properties in the transition metal oxides.

Authors:
 [1];  [1];  [2];  [2];  [3];  [2]
  1. Argonne National Lab. (ANL), Argonne, IL (United States); Northwestern Univ., Evanston, IL (United States)
  2. Argonne National Lab. (ANL), Argonne, IL (United States)
  3. Northwestern Univ., Evanston, 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:
1415608
Alternate Identifier(s):
OSTI ID: 1410858
Grant/Contract Number:  
AC02-06CH11357
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
APL Materials
Additional Journal Information:
Journal Volume: 5; Journal Issue: 12; Journal ID: ISSN 2166-532X
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; Oxides; Superlattices; X-ray scattering; X-ray spectroscopy

Citation Formats

Cook, Seyoung, Andersen, Tassie K., Hong, Hawoong, Rosenberg, Richard A., Marks, Laurence D., and Fong, Dillon D. Engineering the oxygen coordination in digital superlattices. United States: N. p., 2017. Web. doi:10.1063/1.5007663.
Cook, Seyoung, Andersen, Tassie K., Hong, Hawoong, Rosenberg, Richard A., Marks, Laurence D., & Fong, Dillon D. Engineering the oxygen coordination in digital superlattices. United States. doi:10.1063/1.5007663.
Cook, Seyoung, Andersen, Tassie K., Hong, Hawoong, Rosenberg, Richard A., Marks, Laurence D., and Fong, Dillon D. Fri . "Engineering the oxygen coordination in digital superlattices". United States. doi:10.1063/1.5007663. https://www.osti.gov/servlets/purl/1415608.
@article{osti_1415608,
title = {Engineering the oxygen coordination in digital superlattices},
author = {Cook, Seyoung and Andersen, Tassie K. and Hong, Hawoong and Rosenberg, Richard A. and Marks, Laurence D. and Fong, Dillon D.},
abstractNote = {Here, the oxygen sublattice in the complex oxides is typically composed of corner-shared polyhedra, with transition metals at their centers. The electronic and chemical properties of the oxide depend on the type and geometric arrangement of these polyhedra, which can be controlled through epitaxial synthesis. Here, we use oxide molecular beam epitaxy to create SrCoOx:SrTiO3 superlattices with tunable oxygen coordination environments and sublattice geometries. Using soft X-ray spectroscopy, we find that the chemical state of Co can be varied with the polyhedral arrangement, demonstrating a new strategy for achieving unique electronic properties in the transition metal oxides.},
doi = {10.1063/1.5007663},
journal = {APL Materials},
issn = {2166-532X},
number = 12,
volume = 5,
place = {United States},
year = {2017},
month = {12}
}

Journal Article:
Free Publicly Available Full Text
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