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Spin relaxation, Josephson effect and Yu-Shiba-Rusinov states in superconducting bilayer graphene
Barth, Michael
, Fuchs, Jacob
und Kochan, Denis
(2022)
Spin relaxation, Josephson effect and Yu-Shiba-Rusinov states in superconducting bilayer graphene.
Physical Review B 105 (20), S. 205409.
Veröffentlichungsdatum dieses Volltextes: 16 Mai 2022 07:00
Artikel
DOI zum Zitieren dieses Dokuments: 10.5283/epub.52283
Zusammenfassung
Bilayer graphene has two nonequivalent sublattices and, therefore, the same adatom impurity can manifest in spectrally distinct ways???sharp versus broad resonances near the charge neutrality???depending on the sublattice it adsorbs at. Employing Green???s function analytical methods and the numerical KWANT package, we investigate the spectral and transport interplay between the resonances and ...
Bilayer graphene has two nonequivalent sublattices and, therefore, the same adatom impurity can manifest in spectrally distinct ways???sharp versus broad resonances near the charge neutrality???depending on the sublattice it adsorbs at. Employing Green???s function analytical methods and the numerical KWANT package, we investigate the spectral and transport interplay between the resonances and superconducting coherence induced in bilayer graphene by proximity to an s-wave superconductor. Analyzing doping and temperature dependencies of quasiparticle spin-relaxation rates, energies of Yu-Shiba-Rusinov states, Andreev spectra, and the supercurrent characteristics of Josephson junctions, we find unique superconducting signatures discriminating between resonant and off-resonant regimes. Our findings are in certain aspects going beyond the superconducting bilayer graphene and hold for generic s-wave superconductors functionalized by the resonant magnetic impurities.
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| Dokumentenart | Artikel | ||||||
| Titel eines Journals oder einer Zeitschrift | Physical Review B | ||||||
| Verlag: | AMER PHYSICAL SOC | ||||||
|---|---|---|---|---|---|---|---|
| Ort der Veröffentlichung: | COLLEGE PK | ||||||
| Band: | 105 | ||||||
| Nummer des Zeitschriftenheftes oder des Kapitels: | 20 | ||||||
| Seitenbereich: | S. 205409 | ||||||
| Datum | 5 Mai 2022 | ||||||
| Institutionen | Physik > Institut für Theoretische Physik Physik > Institut für Theoretische Physik > Lehrstuhl Professor Richter > Arbeitsgruppe Klaus Richter | ||||||
| Identifikationsnummer |
| ||||||
| Stichwörter / Keywords | BAND-STRUCTURE; JUNCTIONS; SPECTRUM; FIELD | ||||||
| Dewey-Dezimal-Klassifikation | 500 Naturwissenschaften und Mathematik > 530 Physik | ||||||
| Status | Veröffentlicht | ||||||
| Begutachtet | Ja, diese Version wurde begutachtet | ||||||
| An der Universität Regensburg entstanden | Zum Teil | ||||||
| URN der UB Regensburg | urn:nbn:de:bvb:355-epub-522831 | ||||||
| Dokumenten-ID | 52283 |
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