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Title: Electronic and magnetic properties of epitaxial perovskite SrCrO3(001)

Abstract

We have investigated the intrinsic properties of SrCrO3 epitaxial thin films synthesized by molecular beam epitaxy. We find compelling evidence that SrCrO3 is a correlated metal. X-ray photoemission valence band and O K-edge x-ray absorption spectra indicate a strongly hybridized Cr3d-O2p state crossing the Fermi level, leading to metallic behavior. Comparison between valence band spectra near the Fermi level and the densities of states calculated using density functional theory (DFT) suggests the presence of coherent and incoherent states and points to strong electron correlation effects. Here, the magnetic susceptibility can be described by Pauli paramagnetism at temperatures above 100 K, but reveals antiferromagnetic behavior at lower temperatures, possibly resulting from orbital ordering.

Authors:
 [1];  [2];  [2];  [2];  [2];  [3];  [3];  [4];  [4];  [2];  [5]
  1. Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Univ. of Cambridge, Cambridge (United Kingdom)
  2. Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  4. Binghamton Univ., Binghamton, NY (United States)
  5. The Univ. of Manchester, Manchester (United Kingdom)
Publication Date:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Sciences (CNMS)
Sponsoring Org.:
USDOE
OSTI Identifier:
1279423
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Journal of Physics. Condensed Matter
Additional Journal Information:
Journal Volume: 27; Journal Issue: 24; Journal ID: ISSN 0953-8984
Publisher:
IOP Publishing
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; correlated metal; antiferromagnet; perovskite oxide

Citation Formats

Zhang, K. H. L., Du, Y., Sushko, P. V., Bowden, M. E., Shutthanandan, V., Cao, Guixin, Gai, Zheng, Sallis, S., Piper, L. F. J., Chambers, S. A., and Qiao, L. Electronic and magnetic properties of epitaxial perovskite SrCrO3(001). United States: N. p., 2015. Web. doi:10.1088/0953-8984/27/24/245605.
Zhang, K. H. L., Du, Y., Sushko, P. V., Bowden, M. E., Shutthanandan, V., Cao, Guixin, Gai, Zheng, Sallis, S., Piper, L. F. J., Chambers, S. A., & Qiao, L. Electronic and magnetic properties of epitaxial perovskite SrCrO3(001). United States. https://doi.org/10.1088/0953-8984/27/24/245605
Zhang, K. H. L., Du, Y., Sushko, P. V., Bowden, M. E., Shutthanandan, V., Cao, Guixin, Gai, Zheng, Sallis, S., Piper, L. F. J., Chambers, S. A., and Qiao, L. 2015. "Electronic and magnetic properties of epitaxial perovskite SrCrO3(001)". United States. https://doi.org/10.1088/0953-8984/27/24/245605. https://www.osti.gov/servlets/purl/1279423.
@article{osti_1279423,
title = {Electronic and magnetic properties of epitaxial perovskite SrCrO3(001)},
author = {Zhang, K. H. L. and Du, Y. and Sushko, P. V. and Bowden, M. E. and Shutthanandan, V. and Cao, Guixin and Gai, Zheng and Sallis, S. and Piper, L. F. J. and Chambers, S. A. and Qiao, L.},
abstractNote = {We have investigated the intrinsic properties of SrCrO3 epitaxial thin films synthesized by molecular beam epitaxy. We find compelling evidence that SrCrO3 is a correlated metal. X-ray photoemission valence band and O K-edge x-ray absorption spectra indicate a strongly hybridized Cr3d-O2p state crossing the Fermi level, leading to metallic behavior. Comparison between valence band spectra near the Fermi level and the densities of states calculated using density functional theory (DFT) suggests the presence of coherent and incoherent states and points to strong electron correlation effects. Here, the magnetic susceptibility can be described by Pauli paramagnetism at temperatures above 100 K, but reveals antiferromagnetic behavior at lower temperatures, possibly resulting from orbital ordering.},
doi = {10.1088/0953-8984/27/24/245605},
url = {https://www.osti.gov/biblio/1279423}, journal = {Journal of Physics. Condensed Matter},
issn = {0953-8984},
number = 24,
volume = 27,
place = {United States},
year = {Wed Jun 03 00:00:00 EDT 2015},
month = {Wed Jun 03 00:00:00 EDT 2015}
}

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Cited by: 11 works
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Works referencing / citing this record:

Small-Band-Gap Halide Double Perovskites
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Electronic band structure and conduction mechanism of mixed valence T e 4 + / T e 6 + pyrochlore oxides
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Small-Band-Gap Halide Double Perovskites
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