Thermoelectric current in a graphene Cooper pair splitter

Loading...
Thumbnail Image
Journal Title
Journal ISSN
Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Date
2021-12
Major/Subject
Mcode
Degree programme
Language
en
Pages
7
Series
Nature Communications, Volume 12, issue 1
Abstract
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.
Description
| openaire: EC/H2020/670743/EU//OMT | openaire: EC/H2020/722923/EU//QuDeT
Keywords
Other note
Citation
Tan , Z B , Laitinen , A , Kirsanov , N S , Galda , A , Vinokur , V M , Haque , M , Savin , A , Golubev , D S , Lesovik , G B & Hakonen , P J 2021 , ' Thermoelectric current in a graphene Cooper pair splitter ' , Nature Communications , vol. 12 , no. 1 , 138 . https://doi.org/10.1038/s41467-020-20476-7