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相关论文: Fluctuational internal Josephson effect in topolog…

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We investigate a Josephson junction in an electron-hole superfluid in a double layer TMD heterostructure. Observation of a critical tunneling current is a clear signature of superfluidity. In addition, we find the BCS-BEC crossover physics…

超导电性 · 物理学 2022-12-28 Filippo Pascucci , Sara Conti , David Neilson , Jacques Tempere , Andrea Perali

We discuss an experiment in which two magnetic insulators that both show a field-induced magnetic-ordering transition are weakly coupled to one another and are placed into an ex- ternal magnetic field. If the respective magnetic states can…

强关联电子 · 物理学 2012-12-18 Andreas Schilling , Henrik Grundmann

Nonequilibrium effects in layered superconductors forming a stack of intrinsic Josephson junctions are investigated. We discuss two basic nonequilibrium effects caused by charge fluctuations on the superconducting layers: a) the shift of…

超导电性 · 物理学 2009-11-07 D. A. Ryndyk , J. Keller , C. Helm

The area and perimeter dependence of the Josephson-like interlayer tunneling signature of the coherent $\nu_T=1$ quantum Hall phase in bilayer two-dimensional electron systems is examined. Electrostatic top gates of various sizes and shapes…

介观与纳米尺度物理 · 物理学 2009-11-13 A. D. K. Finck , A. R. Champagne , J. P. Eisenstein , L. N. Pfeiffer , K. W. West

Collective modes of bilayered superconducting superlattices (e.g., YBCO) are investigated within the conserving gauge-invariant ladder diagram approximation including both the nearest interlayer single electron tunneling and the…

超导电性 · 物理学 2015-06-25 E. H. Hwang , S. Das Sarma

Electron tunneling spectroscopy pioneered by Esaki and Giaever offered a powerful tool for studying electronic spectra and density of states (DOS) in superconductors. This led to important discoveries that revealed, in particular, the…

超导电性 · 物理学 2013-11-27 A. Glatz , A. A. Varlamov , V. M. Vinokur

The tunneling probability between two leads connected by a molecule, a chain, a film, or a bulk polarizable insulator is investigated within a model of an electron tunneling from lead A to a state higher in energy, describing the barrier,…

介观与纳米尺度物理 · 物理学 2009-11-07 Peter Nalbach , Walter Harrison

We consider a system of two semifluxons of opposite polarity in a 0-pi-0 long Josephson junction, which classically can be in one of two degenerate states: up-down or down-up. When the distance $a$ between the 0-pi boundaries (semifluxon's…

超导电性 · 物理学 2007-05-23 E. Goldobin , K. Vogel , O. Crasser , R. Walser , W. P. Schleich , D. Koelle , R. Kleiner

We argue that spin-sensitive quasiparticle scattering may generate electron-hole imbalance in superconducting structures, such as, e.g., superconducting-normal hybrids with spin-active interfaces. We elucidate a transparent physical…

超导电性 · 物理学 2014-10-03 Mikhail S. Kalenkov , Andrei D. Zaikin

Superconducting fluctuations in long and narrow strips made from ultrathin NbN films, have been investigated. For large bias currents close to the critical current fluctuations led to localized, temporary transitions into the normal…

超导电性 · 物理学 2010-03-25 A. Engel , A. D. Semenov , H. -W. Huebers , K. Il'in , M. Siegel

Huang's experiment [Phys. Rev. Lett. $\bf 109$, 156802 (2012)] found, in the quantum Hall bilayer of the Corbino geometry, the interlayer tunneling currents at two edges are coupled to each other and one of two tunneling currents is…

超导电性 · 物理学 2021-02-10 Ya-Fen Hsu , Jung-Jung Su

We consider hybrid systems consisting of a hole-doped semiconductor coupled to electronic states of finite-size superconductors, where the opposite sign of the masses in the two subsystems give rise to insulating gaps at subband…

介观与纳米尺度物理 · 物理学 2026-03-18 Peter D. Johannsen , Henry F. Legg , Stefano Bosco , Daniel Loss , Jelena Klinovaja

We find that if two superconducting islands of different number parity are linked by a tunnel junction the unpaired electron in the odd island has a tendency to tunnel into the even island. This process leads to fluctuations in time of the…

凝聚态物理 · 物理学 2009-10-28 Boldizsar Janko , Vinay Ambegaokar

We study mesoscopic fluctuations and weak localization correction to the supercurrent in Josephson junctions with coherent diffusive electron dynamics in the normal part. Two kinds of junctions are considered: a chaotic dot coupled to…

介观与纳米尺度物理 · 物理学 2008-03-10 M. Houzet , M. A. Skvortsov

By using analytical and Worldline Monte Carlo approaches, we investigate the effects induced by quantum phase fluctuations combined with quasiparticle subgap and shunt resistances on a small-capacitance Josephson junction. By using the…

The Josephson effect can be regarded as a striking manifestation of exciton condensation. It has been suggested to tune the condensate phase of bilayer excitons by applying interlayer tunneling current. A poorly-understood phenomenon…

超导电性 · 物理学 2022-02-08 Ya-Fen Hsu , Jung-Jung Su

We consider electron--hole Cooper pair condensation in a heterostructure formed by a topological insulator film and a quantum well. We argue that the helical nature of the Dirac electronic states at the topological insulator surface results…

介观与纳米尺度物理 · 物理学 2023-08-30 Alexander Chansky , Dmitry K. Efimkin

At low temperatures, indirect excitons formed at the in-plane electron-hole interface in a coupled quantum well structure undergo a spontaneous transition into a spatially modulated state. We report on the control of the instability…

介观与纳米尺度物理 · 物理学 2015-06-05 Sen Yang , L. V. Butov , B. D. Simons , K. L. Campman , A. C. Gossard

The superconducting transition temperature (Tc) of a single layer graphene coupled to an Indium oxide (InO) film, a low carrier-density superconductor, is found to increase with decreasing carrier density and is largest close to the average…

超导电性 · 物理学 2022-05-20 Gopi Nath Daptary , Udit Khanna , Eyal Walach , Arnab Roy , Efrat Shimshoni , Aviad Frydman

Disordered thin films close to the superconducting-insulating phase transition (SIT) hold the key to understanding quantum phase transition in strongly correlated materials. The SIT is governed by superconducting quantum fluctuations, which…

无序系统与神经网络 · 物理学 2018-03-14 David Dentelski , Aviad Frydman , Efrat Shimshoni , Emanuele G. Dalla Torre