Two-Impurity Yu-Shiba-Rusinov States in Coupled Quantum Dots
Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
Dokumenter
- PhysRevB.102.195143
Forlagets udgivne version, 2,79 MB, PDF-dokument
- Two-impurity Yu-Shiba-Rusinov states in coupled quantum dots
Forlagets udgivne version, 2,79 MB, PDF-dokument
Using Coulomb blockaded double quantum dots, we realize the superconducting analog of the celebrated two-impurity Kondo model. Focusing on gate regions with a single spin-1/2 on each dot, we demonstrate gate-tuned changes of the ground state from an interdot singlet to independently screened Yu-Shiba-Rusinov singlets. In contrast to the zero-temperature two-impurity Kondo model, the crossover between these two singlets is heralded by quantum phase boundaries to nearby doublet phases, in which only a single spin is screened. We identify all four ground states via transport measurements.
Originalsprog | Engelsk |
---|---|
Artikelnummer | 195143 |
Tidsskrift | Physical Review B |
Vol/bind | 102 |
Udgave nummer | 19 |
Antal sider | 15 |
ISSN | 2469-9950 |
DOI | |
Status | Udgivet - 23 nov. 2020 |
Links
- https://arxiv.org/abs/1812.09303
Indsendt manuskript
Antal downloads er baseret på statistik fra Google Scholar og www.ku.dk
Ingen data tilgængelig
ID: 252832882