<div class="csl-bib-body">
<div class="csl-entry">Krien, F., Worm, P., Chalupa-Gantner, P., Toschi, A., & Held, K. (2022). Explaining the pseudogap through damping and antidamping on the Fermi surface by imaginary spin scattering. <i>Communications Physics</i>, <i>5</i>, Article 336. https://doi.org/10.1038/s42005-022-01117-5</div>
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dc.identifier.issn
2399-3650
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/191660
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dc.description.abstract
The mechanism of the pseudogap observed in hole-doped cuprates remains one of the central puzzles in condensed matter physics. We analyze this phenomenon via a Feynman-diagrammatic inspection of the Hubbard model. Our approach captures the pivotal interplay between Mott localization and Fermi surface topology beyond weak-coupling spin fluctuations, which would open a spectral gap near hot spots. We show that strong coupling and particle-hole asymmetry trigger a very different mechanism: a large imaginary part of the spin-fermion vertex promotes damping of antinodal fermions and, at the same time, protects the nodal Fermi arcs (antidamping). Our analysis naturally explains puzzling features of the pseudogap observed in experiments, such as Fermi arcs being cut off at the antiferromagnetic zone boundary and the subordinate role of hot spots.
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dc.description.sponsorship
FWF - Österr. Wissenschaftsfonds
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dc.description.sponsorship
FWF - Österr. Wissenschaftsfonds
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dc.description.sponsorship
FWF - Österr. Wissenschaftsfonds
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dc.language.iso
en
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dc.publisher
Nature Publishing
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dc.relation.ispartof
Communications Physics
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dc.rights.uri
http://creativecommons.org/licenses/by/4.0/
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dc.subject
cuprates
en
dc.subject
pseudogap
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dc.subject
electron properties and materials
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dc.subject
Superconducting properties and materials
en
dc.title
Explaining the pseudogap through damping and antidamping on the Fermi surface by imaginary spin scattering