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

Journal Article · · Journal of Physics. Condensed Matter
 [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)

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.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Sciences (CNMS)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1279423
Journal Information:
Journal of Physics. Condensed Matter, Vol. 27, Issue 24; ISSN 0953-8984
Publisher:
IOP PublishingCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 11 works
Citation information provided by
Web of Science

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Cited By (4)

Small-Band-Gap Halide Double Perovskites journal August 2018
Electronic band structure and conduction mechanism of mixed valence T e 4 + / T e 6 + pyrochlore oxides journal July 2019
Effect of confinement and octahedral rotations on the electronic, magnetic, and thermoelectric properties of correlated Sr X O 3 / SrTiO 3 ( 001 ) superlattices ( X = V , Cr, or Mn) journal October 2019
Small-Band-Gap Halide Double Perovskites journal August 2018

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