<div class="csl-bib-body">
<div class="csl-entry">Lai, H.-H., Grefe, S. E., Paschen, S., & Si, Q. (2018). Weyl-Kondo semimetal in heavy-fermion systems. <i>Proceedings of the National Academy of Sciences of the United States of America</i>, <i>115</i>(1), 93–97. https://doi.org/10.1073/pnas.1715851115</div>
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dc.identifier.issn
0027-8424
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/144720
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dc.description.abstract
Insulating states can be topologically nontrivial, a well-established notion that is exemplified by the quantum Hall effect and topological insulators. By contrast, topological metals have not been experimentally evidenced until recently. In systems with strong correlations, they have yet to be identified. Heavy-fermion semimetals are a prototype of strongly correlated systems and, given their strong spin-orbit coupling, present a natural setting to make progress. Here, we advance a Weyl–Kondo semimetal phase in a periodic Anderson model on a noncentrosymmetric lattice. The quasiparticles near the Weyl nodes develop out of the Kondo effect, as do the surface states that feature Fermi arcs. We determine the key signatures of this phase, which are realized in the heavy-fermion semimetal Ce3Bi4Pd3. Our findings provide the much-needed theoretical foundation for the experimental search of topological metals with strong correlations and open up an avenue for systematic studies of such quantum phases that naturally entangle multiple degrees of freedom.
en
dc.language.iso
en
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dc.publisher
National Academy of Sciences
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dc.relation.ispartof
Proceedings of the National Academy of Sciences of the United States of America
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dc.subject
Multidisciplinary
en
dc.title
Weyl-Kondo semimetal in heavy-fermion systems
en
dc.type
Artikel
de
dc.type
Article
en
dc.description.startpage
93
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dc.description.endpage
97
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dc.type.category
Original Research Article
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tuw.container.volume
115
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tuw.container.issue
1
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tuw.journal.peerreviewed
true
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tuw.peerreviewed
true
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tuw.researchTopic.id
Q6
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tuw.researchTopic.id
M7
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tuw.researchTopic.name
Quantum Many-Body Systems
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tuw.researchTopic.name
Special and Engineering Materials
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tuw.researchTopic.value
60
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tuw.researchTopic.value
40
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dcterms.isPartOf.title
Proceedings of the National Academy of Sciences of the United States of America