Tuning Locality of Pair Coherence in Graphene-based Andreev Interferometers
SCIE
SCOPUS
- Title
- Tuning Locality of Pair Coherence in Graphene-based Andreev Interferometers
- Authors
- Kim, M; Jeong, D; Lee, GH; Shin, YS; LEE, HYUN WOO; Lee, HJ
- Date Issued
- 2015-03-04
- Publisher
- NATURE PUBLISHING GROUP
- Abstract
- We report on gate-tuned locality of superconductivity-induced phase-coherent magnetoconductance oscillations in a graphene-based Andreev interferometer, consisting of a T-shaped graphene bar in contact with a superconducting Al loop. The conductance oscillations arose from the flux change through the superconducting Al loop, with gate-dependent Fraunhofer-type modulation of the envelope. We confirm a transitional change in the character of the pair coherence, between local and nonlocal, in the same device as the effective length-to-width ratio of the device was modulated by tuning the pair-coherence length xi(T) in the graphene layer.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/13233
- DOI
- 10.1038/SREP08715
- ISSN
- 2045-2322
- Article Type
- Article
- Citation
- SCIENTIFIC REPORTS, vol. 5, 2015-03-04
- Files in This Item:
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