Local and Nonlocal Two-Electron Tunneling Processes in a Cooper Pair Splitter

Antti Ranni; Elsa T. Mannila; Axel Eriksson; Dmitry S. Golubev; Jukka P. Pekola; Ville F. Maisi

doi:10.1103/PhysRevLett.129.207703

Local and Nonlocal Two-Electron Tunneling Processes in a Cooper Pair Splitter

Antti Ranni, Elsa T. Mannila, Axel Eriksson, Dmitry S. Golubev, Jukka P. Pekola, Ville F. Maisi

Lund University

Tutkimustuotos: Lehtiartikkeli › Article › Scientific › vertaisarvioitu

5 Sitaatiot (Scopus)

71 Lataukset (Pure)

Abstrakti

We measure the rates and coupling coefficients for local Andreev, nonlocal Andreev, and elastic cotunneling processes. The nonlocal Andreev process, giving rise to Cooper pair splitting, exhibits the same coupling coefficient as the elastic cotunneling whereas the local Andreev process is more than 2 orders of magnitude stronger than the corresponding nonlocal one. Theory estimates describe the findings and explain the large difference in the nonlocal and local coupling arising from competition between electron diffusion in the superconductor and tunnel junction transparency.

Alkuperäiskieli	Englanti
Artikkeli	207703
Sivut	1-6
Sivumäärä	6
Julkaisu	Physical Review Letters
Vuosikerta	129
Numero	20
DOI - pysyväislinkit	https://doi.org/10.1103/PhysRevLett.129.207703
Tila	Julkaistu - 11 marrask. 2022
OKM-julkaisutyyppi	A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

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10.1103/PhysRevLett.129.207703

Local and Nonlocal Two-Electron Tunneling Processes in a Cooper Pair SplitterFinal published version, 872 KBLisenssi: CC BY

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Linkki julkaisuun Scopuksessa

QTF: Kvanttiteknologian huippuyksikkö
Pekola, J. (Vastuullinen tutkija), Blanchet, F. (Projektin jäsen), Golubev, D. (Projektin jäsen), Maillet, O. (Projektin jäsen), Mannila, E. (Projektin jäsen), Senior, J. (Projektin jäsen) & Marín Suárez, M. (Projektin jäsen)
01/01/2018 → 31/12/2020
Projekti: Academy of Finland: Other research funding

OtaNano
Rissanen, A. (Manager)
Aalto-yliopisto
Laitteistot/tilat: Facility
OtaNano Nanofab
Repo, P. (Manager) & Rissanen, A. (Other)
OtaNano
Laitteistot/tilat: Facility

Local and Nonlocal Two-Electron Tunneling Processes in a Cooper Pair Splitter
Christian Flindt
30/11/2022
1 kohde/ Medianäkyvyys
Lehdistö/media: Esiintyminen mediassa

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@article{06c6e00654bf4c80906f7498f0c31e29,

title = "Local and Nonlocal Two-Electron Tunneling Processes in a Cooper Pair Splitter",

abstract = "We measure the rates and coupling coefficients for local Andreev, nonlocal Andreev, and elastic cotunneling processes. The nonlocal Andreev process, giving rise to Cooper pair splitting, exhibits the same coupling coefficient as the elastic cotunneling whereas the local Andreev process is more than 2 orders of magnitude stronger than the corresponding nonlocal one. Theory estimates describe the findings and explain the large difference in the nonlocal and local coupling arising from competition between electron diffusion in the superconductor and tunnel junction transparency.",

author = "Antti Ranni and Mannila, {Elsa T.} and Axel Eriksson and Golubev, {Dmitry S.} and Pekola, {Jukka P.} and Maisi, {Ville F.}",

note = "Funding Information: We acknowledge Fredrik Brange, Christian Flindt, Martin Leijnse, and Claes Thelander for fruitful discussions and the QuantERA project “2D hybrid materials as a platform for topological quantum computing,” Swedish National Science Foundation (Dnr 2018-00099 and 2019-04111), NanoLund, Academy of Finland Grant No. 312057 and QTF Centre of Excellence for financial support. We acknowledge the provision of facilities by Aalto University at OtaNano—Micronova Nanofabrication Centre. ",

year = "2022",

month = nov,

day = "11",

doi = "10.1103/PhysRevLett.129.207703",

language = "English",

volume = "129",

pages = "1--6",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "20",

}

TY - JOUR

T1 - Local and Nonlocal Two-Electron Tunneling Processes in a Cooper Pair Splitter

AU - Ranni, Antti

AU - Mannila, Elsa T.

AU - Eriksson, Axel

AU - Golubev, Dmitry S.

AU - Pekola, Jukka P.

AU - Maisi, Ville F.

N1 - Funding Information: We acknowledge Fredrik Brange, Christian Flindt, Martin Leijnse, and Claes Thelander for fruitful discussions and the QuantERA project “2D hybrid materials as a platform for topological quantum computing,” Swedish National Science Foundation (Dnr 2018-00099 and 2019-04111), NanoLund, Academy of Finland Grant No. 312057 and QTF Centre of Excellence for financial support. We acknowledge the provision of facilities by Aalto University at OtaNano—Micronova Nanofabrication Centre.

PY - 2022/11/11

Y1 - 2022/11/11

N2 - We measure the rates and coupling coefficients for local Andreev, nonlocal Andreev, and elastic cotunneling processes. The nonlocal Andreev process, giving rise to Cooper pair splitting, exhibits the same coupling coefficient as the elastic cotunneling whereas the local Andreev process is more than 2 orders of magnitude stronger than the corresponding nonlocal one. Theory estimates describe the findings and explain the large difference in the nonlocal and local coupling arising from competition between electron diffusion in the superconductor and tunnel junction transparency.

AB - We measure the rates and coupling coefficients for local Andreev, nonlocal Andreev, and elastic cotunneling processes. The nonlocal Andreev process, giving rise to Cooper pair splitting, exhibits the same coupling coefficient as the elastic cotunneling whereas the local Andreev process is more than 2 orders of magnitude stronger than the corresponding nonlocal one. Theory estimates describe the findings and explain the large difference in the nonlocal and local coupling arising from competition between electron diffusion in the superconductor and tunnel junction transparency.

UR - http://www.scopus.com/inward/record.url?scp=85141917232&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.129.207703

DO - 10.1103/PhysRevLett.129.207703

M3 - Article

AN - SCOPUS:85141917232

SN - 0031-9007

VL - 129

SP - 1

EP - 6

JO - Physical Review Letters

JF - Physical Review Letters

IS - 20

M1 - 207703

ER -

Local and Nonlocal Two-Electron Tunneling Processes in a Cooper Pair Splitter

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Local and Nonlocal Two-Electron Tunneling Processes in a Cooper Pair Splitter

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