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- Piotr Stefański, Arturo Tagliacozzo, Bogdan R Bułka
- Physical review letters
- 2004

Linear conductance across a large quantum dot via a single level epsilon(0) with large hybridization to the contacts is strongly sensitive to quasibound states localized in the dot and weakly coupled to epsilon(0). The conductance oscillates with the gate voltage due to interference of the Fano type. At low temperature and Coulomb blockade, Kondo… (More)

- R Capozza, D Giuliano, P Lucignano, A Tagliacozzo
- Physical review letters
- 2005

We calculate the oscillations of the dc conductance across a mesoscopic ring, simultaneously tuned by applied magnetic and electric fields orthogonal to the ring. The oscillations depend on the Aharonov-Bohm flux and of the spin-orbit coupling. They result from mixing of the dynamical phase, including the Zeeman spin splitting, and of geometric phases. By… (More)

The scattering of Dirac electrons by topological defects could be one of the most relevant sources of resistance in graphene and at the boundary surfaces of a three-dimensional topological insulator (3D TI). In the long wavelength, continuous limit of the Dirac equation, the topological defect can be described as a distortion of the metric in curved space,… (More)

- F. Tafuri, A. Tagliacozzo, +8 authors B. L. Altshuler
- Microelectronics Journal
- 2008

- G Campagnano, P Lucignano, D Giuliano, A Tagliacozzo
- Journal of physics. Condensed matter : an…
- 2015

A superconductor-semiconducting nanowire-superconductor heterostructure in the presence of spin-orbit coupling and magnetic field can support a supercurrent even in the absence of phase difference between the superconducting electrodes. We investigate this phenomenon—the anomalous Josephson effect—employing a model capable of describing many bands in the… (More)

- P Lucignano, D Stornaiuolo, F Tafuri, B L Altshuler, A Tagliacozzo
- Physical review letters
- 2010

Self-assembled YBaCuO diffusive grain boundary submicron Josephson junctions offer a realization of a special regime of the proximity effect, where normal state coherence prevails on the superconducting coherence in the barrier region. Resistance oscillations from the current-voltage characteristic encode mesoscopic information on the junction and more… (More)

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