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29 March 2024
 
  » arxiv » cond-mat/0103210

 Article overview


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
AffiliationHKU), Hong Guo, Hatem Mehrez (McGill), R. Roland (NCSU
AbstractResonant 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
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