Publication: Coherence length and quantum geometry in a dilute flat-band superconductor
dc.contributor.department | Department of Physics | |
dc.contributor.kuauthor | Işkın, Menderes | |
dc.contributor.schoolcollegeinstitute | College of Sciences | |
dc.date.accessioned | 2025-03-06T20:59:59Z | |
dc.date.issued | 2024 | |
dc.description.abstract | To explore the influence of quantum-geometric effects on the Ginzburg-Landau coherence length in a dilute flat-band superconductor, we adopt a BCS-BEC crossover approach to the multiband pyrochlore-Hubbard model near the critical temperature for superconductivity. Our self-consistent formulation for this three-dimensional lattice benchmarks very well against the so-called zero-temperature coherence length, demonstrating the monotonic decay of the coherence length to zero as the interaction strength increases. Additionally, we show that the effective mass of the many-body bound states (i.e., Cooper pairs) is nearly identical to that of the lowest-lying two-body bound states in the dilute flat-band limit. | |
dc.description.indexedby | WOS | |
dc.description.indexedby | Scopus | |
dc.description.publisherscope | International | |
dc.description.sponsoredbyTubitakEu | N/A | |
dc.description.sponsorship | The author acknowledges funding from U.S. Air Force Office of Scientific Research (AFOSR) Grant No. FA8655-24-1-7391. | |
dc.identifier.doi | 10.1103/PhysRevB.110.144505 | |
dc.identifier.eissn | 2469-9969 | |
dc.identifier.grantno | U.S. Air Force Office of Scientific Research (AFOSR) [FA8655-24-1-7391] | |
dc.identifier.issn | 2469-9950 | |
dc.identifier.issue | 14 | |
dc.identifier.quartile | Q2 | |
dc.identifier.scopus | 2-s2.0-85206844511 | |
dc.identifier.uri | https://doi.org/10.1103/PhysRevB.110.144505 | |
dc.identifier.uri | https://hdl.handle.net/20.500.14288/27824 | |
dc.identifier.volume | 110 | |
dc.identifier.wos | 1333792500002 | |
dc.keywords | Coherence length | |
dc.keywords | Quantum geometry | |
dc.keywords | Flat-band superconductivity | |
dc.keywords | Dilute superconductors | |
dc.keywords | Electronic correlations | |
dc.keywords | Superconducting phase | |
dc.keywords | Condensed matter physics | |
dc.keywords | Topological superconductors | |
dc.keywords | Quantum materials | |
dc.keywords | Band structure | |
dc.language.iso | eng | |
dc.publisher | American Physical Society | |
dc.relation.ispartof | Physical Review B | |
dc.subject | Materials science, multidisciplinary | |
dc.subject | Physics, applied | |
dc.subject | Physics, condensed matter | |
dc.title | Coherence length and quantum geometry in a dilute flat-band superconductor | |
dc.type | Journal Article | |
dspace.entity.type | Publication | |
local.contributor.kuauthor | Işkın, Menderes | |
local.publication.orgunit1 | College of Sciences | |
local.publication.orgunit2 | Department of Physics | |
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