Quasiparticle transport properties of mesoscopic wires containing normal-metal/superconductor/normal-metal proximity junctions
SCIE
SCOPUS
- Title
- Quasiparticle transport properties of mesoscopic wires containing normal-metal/superconductor/normal-metal proximity junctions
- Authors
- Kim, N; Kim, K; Lee, HJ; Lee, S; Yuk, JS; Park, KW; Lee, EH
- Date Issued
- 1997-07
- Publisher
- KOREAN PHYSICAL SOC
- Abstract
- We measured the differential resistance dV/dI of mesoscopic normal-metal/superconductor/ normal-metal (N-S-N) junctions. At low temperatures (T < 4 K), we observed a dip in dV/dI at zero bias and anomalous peaks near a bias of 2 Delta(PbIn)/e, where Delta(PbIn) is the gap energy of superconducting Pb-In, and at a higher bias V-c. The zero-bias dip is supposed to originate from Andreev reflections of quasiparticles and the peak near 2 Delta(PbIn)/e from the formation of a standing-wave mode of quasiparticles inside the superconducting potential barrier. We attribute the peaks at V-c to a transition of the superconducting region to the normal state as the current exceeds the critical current I-c of S.
- Keywords
- TRANSITION
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/21267
- ISSN
- 0374-4884
- Article Type
- Article
- Citation
- JOURNAL OF THE KOREAN PHYSICAL SOCIETY, vol. 31, no. 1, page. 36 - 39, 1997-07
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