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Resonant Andreev reflections in superconductor-carbon-nanotube devices | Yadong Wei
; Jian Wang
; Hong Guo
; Hatem Mehrez
; R. Roland
; | Date: |
9 Mar 2001 | Journal: | Phys. Rev. B Vol.63, 195412 (2001) | Subject: | cond-mat | Affiliation: | HKU), Hong Guo, Hatem Mehrez (McGill), R. Roland (NCSU | Abstract: | Resonant Andreev reflection through superconductor-carbon-nanotube devices was investigated theoretically with a focus on the superconducting proximity effect. Consistent with a recent experiment, we find that for high transparency devices on-resonance, the Andreev current is characterized by a large value and a resistance dip; low-transparency off-resonance devices give the opposite result. We also give evidence that the observed low-temperature transport anomaly may be a natural result of Andreev reflection process. | Source: | arXiv, cond-mat/0103210 | Services: | Forum | Review | PDF | Favorites |
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