Thermoelectric current in a graphene Cooper pair splitter.
Journal
Nature communications
ISSN: 2041-1723
Titre abrégé: Nat Commun
Pays: England
ID NLM: 101528555
Informations de publication
Date de publication:
08 Jan 2021
08 Jan 2021
Historique:
received:
06
05
2020
accepted:
29
11
2020
entrez:
9
1
2021
pubmed:
10
1
2021
medline:
10
1
2021
Statut:
epublish
Résumé
Generation of electric voltage in a conductor by applying a temperature gradient is a fundamental phenomenon called the Seebeck effect. This effect and its inverse is widely exploited in diverse applications ranging from thermoelectric power generators to temperature sensing. Recently, a possibility of thermoelectricity arising from the interplay of the non-local Cooper pair splitting and the elastic co-tunneling in the hybrid normal metal-superconductor-normal metal structures was predicted. Here, we report the observation of the non-local Seebeck effect in a graphene-based Cooper pair splitting device comprising two quantum dots connected to an aluminum superconductor and present a theoretical description of this phenomenon. The observed non-local Seebeck effect offers an efficient tool for producing entangled electrons.
Identifiants
pubmed: 33420055
doi: 10.1038/s41467-020-20476-7
pii: 10.1038/s41467-020-20476-7
pmc: PMC7794233
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
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