Phase-coherent conduction in mesoscopic normal-metal/superconductor hybrid junctions
SCIE
SCOPUS
- Title
- Phase-coherent conduction in mesoscopic normal-metal/superconductor hybrid junctions
- Authors
- Kim, N; Lee, HJ; Kim, JJ; Lee, JO; Park, JW; Yoo, KH; Lee, S; Park, KW
- Date Issued
- 2000-01
- Publisher
- PERGAMON-ELSEVIER SCIENCE LTD
- Abstract
- In this paper we report about the transport properties of mesoscopic normal-metal/superconductor (NS) hybrid systems with two different junction layouts. One is a junction fabricated by overlaying S on N wire and the other with S sandwiched between two N wires, forming an NSN structure. At zero bias all the junctions exhibited a sharp decrease of dV/dI, which is believed to arise from the interference between the disorder-scattered and the Andreev-reflected quasiparticles. A small magnetic field corresponding to one flux quantum through the normal metal region, applied in parallel with the NS junction, easily suppressed the anomalous zero-bias conductance enhancement for the sandwich-junction sample. This high sensitivity to a small magnetic field observed in our systems of mesoscopic NS junctions in a diffusive-transport regime directly confirms the electron-hole-interference origin of the zero-bias anomaly. (C) 2000 Published by Elsevier Science Ltd. All rights reserved.
- Keywords
- heterojunctions; nanostructures; surfaces and interfaces; electronic transport; QUANTUM TRANSPORT; SUPERCONDUCTOR; MICROJUNCTIONS; INTERFERENCE; ELECTRONS
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/19996
- DOI
- 10.1016/S0038-1098(00)00120-4
- ISSN
- 0038-1098
- Article Type
- Article
- Citation
- SOLID STATE COMMUNICATIONS, vol. 115, no. 1, page. 29 - 34, 2000-01
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- There are no files associated with this item.
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