<div class="csl-bib-body">
<div class="csl-entry">Si, L., Janson, O., Li, G., Zhong, Z., Liao, Z., Koster, G., & Held, K. (2017). Quantum Anomalous Hall State in Ferromagnetic SrRuO₃ (111) Bilayers. <i>Physical Review Letters</i>, <i>119</i>(2), Article 026402. https://doi.org/10.1103/physrevlett.119.026402</div>
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dc.identifier.issn
0031-9007
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/147564
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dc.description.abstract
SrRuO3 heterostructures grown in the (111) direction are a rare example of thin film ferromagnets. By means of density functional theory plus dynamical mean field theory we show that the half-metallic ferromagnetic state with an ordered magnetic moment of 2 μB/Ru survives the ultimate dimensional confinement down to a bilayer, even at elevated temperatures of 500 K. In the minority channel, the spin-orbit coupling opens a gap at the linear band crossing corresponding to 34 filling of the t2g shell. We predict that the emergent phase is Haldane's quantum anomalous Hall state with Chern number C=1, without an external magnetic field or magnetic impurities.
en
dc.description.sponsorship
Europäischer Forschungsrat (ERC)
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dc.description.sponsorship
Fonds zur Förderung der wissenschaftlichen Forschung (FWF)
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dc.language.iso
en
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dc.publisher
AMER PHYSICAL SOC
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dc.relation.ispartof
Physical Review Letters
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dc.subject
General Physics and Astronomy
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dc.subject
Strongly correlated systems
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dc.subject
Ferromagnetism
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dc.subject
Quantum anomalous Hall effect
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dc.subject
Topological Hall effect
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dc.subject
Topological materials
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dc.subject
Dynamical Mean Field Theory
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dc.title
Quantum Anomalous Hall State in Ferromagnetic SrRuO₃ (111) Bilayers
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dc.type
Artikel
de
dc.type
Article
en
dc.relation.grantno
306447
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dc.relation.grantno
M 2050-N34
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dc.type.category
Original Research Article
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tuw.container.volume
119
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tuw.container.issue
2
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tuw.journal.peerreviewed
true
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tuw.peerreviewed
true
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wb.publication.intCoWork
International Co-publication
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tuw.project.title
Ab initio Dynamical Vertex Approximation
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tuw.project.title
Dynamics of correlated materials with honycomb lattice