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Publisher DOI: 10.1038/s41598-017-01847-5
Title: Unconventional electron states in δ-doped SmTiO3
Language: English
Authors: Lechermann, Frank 
Keywords: Mott-insulating distorted perovskite SmTiO3;dynamical mean-field theory;electron-electron scattering;antiferromagnetic fluctuations
Issue Date: 8-May-2017
Publisher: Nature Publishing Group
Source: Scientific reports 1 (7): 1565- (2017-05-08)
Journal or Series Name: Scientific reports 
Abstract (english): 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.
DOI: 10.15480/882.1767
ISSN: 2045-2322
Institute: Keramische Hochleistungswerkstoffe M-9 
Type: (wissenschaftlicher) Artikel
Funded by: DFG
Appears in Collections:Publications (tub.dok)

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