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Title: Electronic and Magnetic Properties of Epitaxial Perovskite SrCrO3(001)

We investigated the intrinsic properties of SrCrO3 epitaxial thin films synthesized by molecular beam epitaxy. We found 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. Furthermore, a 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. 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] ;  [4] ;  [4] ;  [5] ;  [5] ;  [2]
  1. Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Univ. of Cambridge (United Kingdom)
  2. Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
  3. Univ. of Manchester (United Kingdom)
  4. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  5. Binghamton Univ., NY (United States)
Publication Date:
OSTI Identifier:
1229050
Report Number(s):
BNL--111125-2015-JA
Journal ID: ISSN 0953-8984
DOE Contract Number:
SC00112704
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Physics. Condensed Matter; Journal Volume: 27; Journal Issue: 24
Publisher:
IOP Publishing
Research Org:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY