Supercurrent transport through 1e -periodic full-shell Coulomb islands
(2024) In Physical Review B 109(4).- Abstract
We experimentally investigate supercurrent through Coulomb islands, where island and leads are fabricated from semiconducting nanowires with fully surrounding superconducting shells. Applying flux along the wire yields a series of destructive Little-Parks lobes with reentrant supercurrent. We find Coulomb blockade with 2e peak spacing in the zeroth lobe and 1e average spacing, with regions of significant even-odd modulation, in the first lobe. Evolution of Coulomb-peak amplitude through the first lobe is consistent with a theoretical model of supercurrent carried predominantly by zero-energy states in the leads and the island.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/d61e7ce1-5e01-4cc9-bb33-42f915b4ce65
- author
- Razmadze, D. ; Souto, R. Seoane LU ; O'Farrell, E. C.T. ; Krogstrup, P. ; Leijnse, M. LU ; Marcus, C. M. and Vaitiekėnas, S.
- organization
- publishing date
- 2024-01
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physical Review B
- volume
- 109
- issue
- 4
- article number
- L041302
- publisher
- American Physical Society
- external identifiers
-
- scopus:85184146518
- ISSN
- 2469-9950
- DOI
- 10.1103/PhysRevB.109.L041302
- language
- English
- LU publication?
- yes
- id
- d61e7ce1-5e01-4cc9-bb33-42f915b4ce65
- date added to LUP
- 2024-02-29 13:37:34
- date last changed
- 2024-02-29 13:39:44
@article{d61e7ce1-5e01-4cc9-bb33-42f915b4ce65, abstract = {{<p>We experimentally investigate supercurrent through Coulomb islands, where island and leads are fabricated from semiconducting nanowires with fully surrounding superconducting shells. Applying flux along the wire yields a series of destructive Little-Parks lobes with reentrant supercurrent. We find Coulomb blockade with 2e peak spacing in the zeroth lobe and 1e average spacing, with regions of significant even-odd modulation, in the first lobe. Evolution of Coulomb-peak amplitude through the first lobe is consistent with a theoretical model of supercurrent carried predominantly by zero-energy states in the leads and the island.</p>}}, author = {{Razmadze, D. and Souto, R. Seoane and O'Farrell, E. C.T. and Krogstrup, P. and Leijnse, M. and Marcus, C. M. and Vaitiekėnas, S.}}, issn = {{2469-9950}}, language = {{eng}}, number = {{4}}, publisher = {{American Physical Society}}, series = {{Physical Review B}}, title = {{Supercurrent transport through 1e -periodic full-shell Coulomb islands}}, url = {{http://dx.doi.org/10.1103/PhysRevB.109.L041302}}, doi = {{10.1103/PhysRevB.109.L041302}}, volume = {{109}}, year = {{2024}}, }