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Polaronic effects a...
Polaronic effects and thermally enhanced weak superconductivity
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Parafilo, A. V. (författare)
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- Krive, Ilya V. (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för fysik (GU),Department of Physics (GU)
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- Shekhter, Robert I., 1947 (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för fysik (GU),Department of Physics (GU)
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Park, Y. W. (författare)
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- Jonson, Mats, 1947 (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för fysik (GU),Department of Physics (GU)
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(creator_code:org_t)
- 2014
- 2014
- Engelska.
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Ingår i: Physical Review B. Condensed Matter and Materials Physics. - 1098-0121. ; 89:11
- Relaterad länk:
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https://gup.ub.gu.se...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- We theoretically analyze the d.c Josephson current between two superconductors connected by a vibrating weak link. Assuming the weak link to be a ``quantum dot" we predict that the critical current is thermally enhanced at low temperatures if the electron-vibron interaction is strong and has an anomalous temperature dependence in a large temperature interval. We estimate that this unusual behavior, which occurs because the current through the weak link is carried by ``polaronic" Andreev states, is measurable in experiments on, e.g., carbon-nanotube based Josepshon junctions.
Ämnesord
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Nyckelord
- Nanoelectromechanics
- Josephson effects
- quantum dots
- polaronic effects
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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