Searched for: collection%3Air
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document
Yokoyama, T. (author), Reutlinger, Johannes (author), Belzig, Wolfgang (author), Nazarov, Y.V. (author)
We consider the spectrum of Andreev bound states (ABSs) in an exemplary four-terminal superconducting structure where four chaotic cavities are connected by quantum point contacts to the terminals and to each other forming a ring. We nickname the resulting device 4T-ring. Such a tunable device can be realized in a 2D electron gas...
journal article 2017
document
Reutlinger, J. (author), Glazman, L. (author), Nazarov, Y.V. (author), Belzig, W. (author)
The superconducting proximity effect leads to strong modifications of the local density of states in diffusive or chaotic cavity Josephson junctions, which displays a phase-dependent energy gap around the Fermi energy. The so-called minigap of the order of the Thouless energy ETh is related to the inverse dwell time in the diffusive region in...
journal article 2014
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Reutlinger, J. (author), Glazman, L. (author), Nazarov, Y.V. (author), Belzig, W. (author)
The density of Andreev levels in a normal metal (N) in contact with two superconductors (S) is known to exhibit an induced minigap related to the inverse dwell time. We predict a small secondary gap just below the superconducting gap edge—a feature that has been overlooked so far in numerous microscopic studies of the density of states in S?N?S...
journal article 2013
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Cottet, A. (author), Huertas-Hernando, D. (author), Belzig, W. (author), Nazarov, Y.V. (author)
The quasiclassical theory of superconductivity provides the most successful description of diffusive heterostructures comprising superconducting elements, namely, the Usadel equations for isotropic Green’s functions. Since the quasiclassical and isotropic approximations break down close to interfaces, the Usadel equations have to be supplemented...
journal article 2009
document
Vanevi?, M. (author), Nazarov, Y.V. (author), Belzig, W. (author)
We determine charge-transfer statistics in a quantum conductor driven by a time-dependent voltage and identify the elementary transport processes. At zero temperature unidirectional and bidirectional single-charge transfers occur. The unidirectional processes involve electrons injected from the source terminal due to excess dc bias voltage. The...
journal article 2008
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Vanevic, M. (author), Nazarov, Y.V. (author), Belzig, W. (author)
journal article 2007
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Belzig, W. (author), Bruder, C. (author), Nazarov, Y.V. (author)
journal article 2007
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Samuelsson, P. (author), Belzig, W. (author), Nazarov, Yu.V. (author)
journal article 2004
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Belzig, W. (author), Shaikhaidarov, R. (author), Petrashov, V.V. (author), Nazarov, Yu.V. (author)
journal article 2002
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Zareyan, M. (author), Belzig, W. (author), Nazarov, Yu.V. (author)
journal article 2002
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Huertas-Hernando, D. (author), Nazarov, Yu.V. (author), Belzig, W. (author)
journal article 2002
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Zareyan, M. (author), Belzig, W. (author), Nazarov, Yu.V. (author)
journal article 2001
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Belzig, W. (author), Nazarov, Yu.V. (author)
journal article 2001
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Belzig, W. (author), Nazarov, Yu.V. (author)
journal article 2001
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Belzig, W. (author), Nazarov, Y.V. (author), Bauer, G.E.W. (author)
The electron transport though ferromagnetic metal-superconducting hybrid devices is considered in the non-equilibrium Green's function formalism in the quasiclassical approximation. Attention if focused on the limit in which the exchange splitting in the ferromagnet is much larger than the superconducting energy gap. Transport properties are...
journal article 2000
document
Belzig, W. (author), Brataas, A. (author), Nazarov, Yu.V. (author), Bauer, G.E.W. (author)
journal article 2000
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