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Unconventional electron states in δ-doped SmTiO3
Citation Link: https://doi.org/10.15480/882.1767
Publikationstyp
Journal Article
Date Issued
2017-05-08
Sprache
English
Author(s)
TORE-DOI
Journal
Volume
7
Issue
1
Start Page
Article number: 1565 (2017)
Citation
Scientific reports 1 (7): art. no 1565 (2017)
Publisher DOI
Scopus ID
Publisher
Nature Publishing Group
The Mott-insulating distorted perovskite SmTiO3, doped with a single SrO layer in a quantum-well architecture is studied by the combination of density functional theory with dynamical mean-field theory. A rich correlated electronic structure in line with recent experimental investigations is revealed by the given realistic many-body approach to a large-unit-cell oxide heterostructure. Coexistence of conducting and Mott-insulating TiO2 layers prone to magnetic order gives rise to multi-orbital electronic transport beyond standard Fermi-liquid theory. First hints towards a pseudogap opening due to electron-electron scattering within a background of ferromagnetic and antiferromagnetic fluctuations are detected.
Subjects
Mott-insulating distorted perovskite SmTiO3
dynamical mean-field theory
electron-electron scattering
antiferromagnetic fluctuations
DDC Class
530: Physik
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Name
s41598-017-01847-5.pdf
Size
2.38 MB
Format
Adobe PDF