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Model Evidence of a...
Model Evidence of a Superconducting State with a Full Energy Gap in Small Cuprate Islands
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- Black-Schaffer, Annica M. (författare)
- Uppsala universitet,Materialteori
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Golubev, Dmitri S. (författare)
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- Bauch, Thilo, 1972 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Lombardi, Floriana, 1967 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Fogelström, Mikael, 1963 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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(creator_code:org_t)
- 2013
- 2013
- Engelska.
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Ingår i: Physical Review Letters. - 1079-7114 .- 0031-9007. ; 110:19, s. 197001-
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http://publications.... (primary) (free)
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- We investigate subdominant order parameters stabilizing at low temperatures in nanoscale high-Tc cuprate islands, motivated by the recent observation of a fully gapped state in nanosized YBa2Cu3O7-δ[D. Gustafsson et al., Nature Nanotech. 8, 25 (2013)]. Using complementary quasiclassical and tight-binding Bogoliubov–de Gennes methods, we show on distinctly different properties dependent on the symmetry being dx2-y2 þ is or dx2-y2 þ idxy. We find that a surface-induced dx2-y2 þ is phase creates a global spectroscopic gap which increases with an applied magnetic field, consistent with experimental observation.
Ämnesord
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
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