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In disordered metals, electron-electron interactions are the origin of a small correction to the conductivity, the "Altshuler-Aronov correction". Here we investigate the Altshuler-Aronov correction of a conductor in which the electron…

介观与纳米尺度物理 · 物理学 2009-11-13 Piet W. Brouwer , Joern N. Kupferschmidt

We investigate the formation of non-equilibrium superconducting states in driven alkali-doped fullerides A$_3$C$_{60}$. Within a minimal three-orbital model for the superconductivity of these materials, it was recently demonstrated…

超导电性 · 物理学 2017-08-17 Giacomo Mazza , Antoine Georges

How the superconductivity in unconventional superconductors emerges from the diverse mother normal states is still a big puzzle. Whatever the mother normal states are the superconductivity is {\em normal} with BCS-like behaviours of the…

超导电性 · 物理学 2018-01-04 Yuehua Su , Chao Zhang

The effects of low carrier density and carrier compensation on mixed-state thermal transport are investigated beyond the quasiclassical approximation. It is shown that, contrary to the usual observations, the interplay of the two effects…

超导电性 · 物理学 2009-11-13 Hiroto Adachi , Manfred Sigrist

In this article we review the state of the art on the transport properties of quantum dot systems connected to superconducting and normal electrodes. The review is mainly focused on the theoretical achievements although a summary of the…

介观与纳米尺度物理 · 物理学 2011-11-22 A. Martin-Rodero , A. Levy Yeyati

We investigate transport properties of a superconducting junction of many ($N \ge 2$) one-dimensional quantum wires. We include the effectofelectron-electron interaction within the one-dimensional quantum wire using a weak interaction…

介观与纳米尺度物理 · 物理学 2008-04-15 Sourin Das , Sumathi Rao , Arijit Saha

In multi-band metals quasi-particles arising from different atomic orbitals coexist at a common Fermi surface. Superconductivity in these materials may appear due to interactions within a band (intra-band) or among the distinct metallic…

强关联电子 · 物理学 2015-05-19 Aline Ramires , Mucio A. Continentino

We discuss very low temperature experiments on superconducting micro-coolers made of a double Normal metal - Insulator - Superconductor junction. We investigate with a high resolution the differential conductance of the micro-cooler as well…

Phase-coherent diffusive transport through mesoscopic hybrid superconductor/normal metal tunneling structures is investigated. For a N-s-S two-barrier tunneling system with bulk S and N electrodes coupled by a mesoscopic superconducting…

超导电性 · 物理学 2009-09-25 A. V. Zaitsev , A. F. Volkov , S. W. D. Bailey , C. J. Lambert

We study subgap transport through an interacting quantum dot tunnel coupled to one normal and two superconducting leads. To check the reliability of an approximation of an infinitely-large gap $\Delta$ in the superconducting leads and weak…

介观与纳米尺度物理 · 物理学 2013-01-21 David Futterer , Jacek Swiebodzinski , Michele Governale , Jürgen König

Two critical points have been revealed in the normal-state phase diagram of the electron-doped cuprate superconductor Nd$_{2-x}$Ce$_x$CuO$_4$ by exploring the Fermi surface properties of high quality single crystals by high-field…

We show that in disordered superconductors, at sufficiently low frequencies $\omega$, the coupling of TLS to external ac electric fields increases dramatically in the presence of a dc supercurrent. This giant enhancement manifests in all ac…

超导电性 · 物理学 2026-04-28 T. Liu , A. V. Andreev , B. Z. Spivak

We implement the effects of disorder on a holographic superconductor by introducing a random chemical potential on the boundary. We demonstrate explicitly that increasing disorder leads to the formation of islands where the superconducting…

高能物理 - 理论 · 物理学 2016-11-15 Daniel Arean , Leopoldo A. Pando Zayas , Ignacio Salazar Landea , Antonello Scardicchio

The kinetic energy of superconducting electrons in an ultrathin, doubly connected superconducting cylinder, determined by the applied flux, increases as the cylinder diameter decreases, leading to a destructive regime around half-flux…

超导电性 · 物理学 2016-08-31 H. Wang , M. M. Rosario , N. A. Kurz , B. Y. Rock , M. Tian , P. T. Carrigan , Y. Liu

We study the electronic current through a quantum dot coupled to two superconducting leads which is driven by either a voltage $V$ or temperature $\Delta T$ bias. Finite biases beyond the linear response regime are considered. The local…

强关联电子 · 物理学 2014-06-12 Jan F. Rentrop , Severin G. Jakobs , Volker Meden

It is shown that the conductance of a superconductor-normal metal-superconductor junction can exhibit a significant dependence on the phase of the superconducting order parameter in the situation when the size of the normal region of the…

凝聚态物理 · 物理学 2007-05-23 F. Zhou , B. Spivak

Inhomogeneity is introduced through random local interactions (Ui) in an attractive Hubbard model on a square lattice and studied using mean-field Bogoliubov-de Gennes formalism. Superconductivity is found to get suppressed by the random Ui…

超导电性 · 物理学 2009-11-13 Budhaditya Chatterjee , A. Taraphder

The theory of hole superconductivity predicts that in superconductors the charged superfluid is about a million times more rigid than the normal electron fluid. We point out that this physics should give rise to large changes in the bulk…

超导电性 · 物理学 2012-04-24 J. E. Hirsch

We study the Anderson single-level quantum dot attached to two BCS superconducting leads with the same gap size. We reveal that a system with asymmetric tunnel coupling to the leads ($\Gamma_{L}\neq\Gamma_{R}$) can be related to the…

介观与纳米尺度物理 · 物理学 2017-05-10 Alžběta Kadlecová , Martin Žonda , Tomáš Novotný

Conductance of metallic heterostructures can be controlled by applying a gate voltage to a region in the transport channel. For sufficiently long phase coherent channels, oscillations appear in conductance versus chemical potential plot,…

超导电性 · 物理学 2023-08-28 Sushil Kumar Sahu , Abhiram Soori
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