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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) also suggests the presence of coherent and incoherent states and points to a strong electron-electron correlation effects. The magnetic susceptibility can be described by Pauli paramagnetism at temperatures above 100 K, but reveals antiferromagnetic behavior at lower temperatures resulting from orbital ordering as suggested by Ortega-San-Martin et al. [Phys. Rev. Lett. 99, 255701 (2007)].

Authors:
; ; ; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Pacific Northwest National Laboratory (PNNL), Richland, WA (US), Environmental Molecular Sciences Laboratory (EMSL)
Sponsoring Org.:
USDOE
OSTI Identifier:
1213012
Report Number(s):
PNNL-SA-108136
48341; KC0203020
DOE Contract Number:  
AC05-76RL01830
Resource Type:
Journal Article
Journal Name:
Journal of Physics: Condensed Matter, 27(24):245605
Additional Journal Information:
Journal Name: Journal of Physics: Condensed Matter, 27(24):245605
Country of Publication:
United States
Language:
English
Subject:
epitaxial perovskite; Environmental Molecular Sciences Laboratory

Citation Formats

Zhang, Hongliang, Du, Yingge, Sushko, Petr, Bowden, Mark E., Shutthanandan, V., Qiao, Liang, Cao, Guixin, Gai, Zheng, Sallis, Shawn, Piper, L. F.J., and Chambers, Scott A. Electronic and magnetic properties of epitaxial perovskite SrCrO3(001). United States: N. p., 2015. Web. doi:10.1088/0953-8984/27/24/245605.
Zhang, Hongliang, Du, Yingge, Sushko, Petr, Bowden, Mark E., Shutthanandan, V., Qiao, Liang, Cao, Guixin, Gai, Zheng, Sallis, Shawn, Piper, L. F.J., & Chambers, Scott A. Electronic and magnetic properties of epitaxial perovskite SrCrO3(001). United States. doi:10.1088/0953-8984/27/24/245605.
Zhang, Hongliang, Du, Yingge, Sushko, Petr, Bowden, Mark E., Shutthanandan, V., Qiao, Liang, Cao, Guixin, Gai, Zheng, Sallis, Shawn, Piper, L. F.J., and Chambers, Scott A. Wed . "Electronic and magnetic properties of epitaxial perovskite SrCrO3(001)". United States. doi:10.1088/0953-8984/27/24/245605.
@article{osti_1213012,
title = {Electronic and magnetic properties of epitaxial perovskite SrCrO3(001)},
author = {Zhang, Hongliang and Du, Yingge and Sushko, Petr and Bowden, Mark E. and Shutthanandan, V. and Qiao, Liang and Cao, Guixin and Gai, Zheng and Sallis, Shawn and Piper, L. F.J. and Chambers, Scott A.},
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) also suggests the presence of coherent and incoherent states and points to a strong electron-electron correlation effects. The magnetic susceptibility can be described by Pauli paramagnetism at temperatures above 100 K, but reveals antiferromagnetic behavior at lower temperatures resulting from orbital ordering as suggested by Ortega-San-Martin et al. [Phys. Rev. Lett. 99, 255701 (2007)].},
doi = {10.1088/0953-8984/27/24/245605},
journal = {Journal of Physics: Condensed Matter, 27(24):245605},
number = ,
volume = ,
place = {United States},
year = {2015},
month = {6}
}

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