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Related papers: Current oscillations in a superlattice under non-q…

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Highly-doped graphene samples show the conductance reduced and the shot-noise power enhanced compared to standard ballistic systems in two-dimensional electron gas. These features can be understood within a model assuming incoherent…

Mesoscale and Nanoscale Physics · Physics 2024-06-25 Adam Rycerz , Katarzyna Rycerz , Piotr Witkowski

We consider the transport of electrons passing through a mesoscopic device possessing internal dynamical quantum degrees of freedom. The mutual interaction between the system and the conduction electrons contributes to the current…

Mesoscale and Nanoscale Physics · Physics 2010-07-08 Christopher Birchall , Henning Schomerus

By spatially mapping the Doppler effect of an in-plane magnetic field on the quasiparticle tunneling spectrum, we have laterally imaged the vortex lattice in superconducting 2H-NbSe2. Cryomagnetic scanning tunneling spectroscopy was…

Superconductivity · Physics 2015-05-30 I. Fridman , C. Kloc , C. Petrovic , J. Y. T. Wei

We study the current-voltage characteristic of narrow superconducting strips in the gapless regime near the critical temperature in the framework of the Ginzburg-Landau model. Our focus is on its instabilities occurring at high current…

Superconductivity · Physics 2020-02-19 Yury N. Ovchinnikov , Andrey A. Varlamov , Gregory J. Kimmel , Andreas Glatz

In this study, a possible non-quasiparticle glue for superconductivity of both conventional and unconventional superconductors is explored in a pure electron picture. It is shown clearly that the moving electrons due to the electromagnetic…

Superconductivity · Physics 2009-09-04 X. Q. Huang

We observe conductivity oscillations with aperiodic spacing to only one side of the tunneling current in a dual-gated graphene field effect transistor with an n-p-n type potential barrier. The spacing and width of these oscillatoins were…

Mesoscale and Nanoscale Physics · Physics 2013-07-02 Milan Begliarbekov , Onejae Sul , Nan Ai , Eui-Hyeok Yang , Stefan Strauf

In this paper we develop a theory of mesoscopic fluctuations in disordered thin superconducting films in a parallel magnetic field. At zero temperature and sufficiently strong magnetic field the system undergoes a phase transition into a…

Superconductivity · Physics 2007-05-23 F. Zhou , B. Spivak

We study the manifestation of the Nernst effect in the Corbino disk subjected to the normal external magnetic field and to the radial temperature gradient. The Corbino geometry offers a precious opportunity for the direct measurement of the…

Mesoscale and Nanoscale Physics · Physics 2020-01-30 A. V. Kavokin , B. L. Altshuler , S. G. Sharapov , P. S. Grigoryev , A. A. Varlamov

The superconductivity of quasi-one-dimensional electrons in the magnetic field is studied. The system is described as the one-dimensional electrons with no frustration due to the magnetic field. The interaction is assumed to be attractive…

Condensed Matter · Physics 2009-10-28 Yasumasa Hasegawa , Mitake Miyazaki

The miniband Aharonov-Bohm oscillations and the interminiband absorption coefficient have been considered theoretically for one-layer superlattices of square and rectangular symmetries, composed of cylindrical quantum rings in the external…

Applied Physics · Physics 2019-09-20 Vigen Aziz-Aghchegala , Vram Mughnetsyan , Ara Atayan , Albert Kirakosyan

The discrete shell structure of vortex matter strongly influences the flux dynamics in mesoscopic superconducting Corbino disks. While the dynamical behavior is well understood in large and in very small disks, in the intermediate-size…

Superconductivity · Physics 2009-07-28 N. S. Lin , V. R. Misko , F. M. Peeters

Extraordinary dispersion features of both bulk and surface polaritons in a finely-stratified magnetic-semiconductor structure which is under an action of an external static magnetic field in the Voigt geometry are discussed in this letter.…

Materials Science · Physics 2016-04-29 Volodymyr I. Fesenko , Illia V. Fedorin , Vladimir R. Tuz

The current-voltage characteristics of long and narrow superconducting channels are investigated using the time-dependent Ginzburg-Landau equations for complex order parameter. We found out that the steps in the current voltage…

Superconductivity · Physics 2015-05-27 V. V. Baranov , A. G. Balanov , V. V. Kabanov

The MBE-grown GaAs/AlGaAs superlattice with Si-doped barriers has been used to study a 3D-2D transition under the influence of the in-plane component of applied magnetic field. The longitudinal magnetoresistance data measured in tilted…

Mesoscale and Nanoscale Physics · Physics 2007-07-25 L. Smrčka , P. Vašek , P. Svoboda , N. A. Goncharuk , O. Pacherová , Yu. Krupko , Y. Sheikin

In this article, we attempt to understand various aspects of turbulent flows in electron hydrodynamics. We analyze a rectangular channel geometry in the presence of an electric field and a Corbino geometry in the presence of a magnetic…

Mesoscale and Nanoscale Physics · Physics 2025-12-16 Kanad Bhattacharya

Ballistic transport through an impurity-free section of the Corbino disk in graphene is investigated by means of the Landauer-B\"{u}ttiker formalism in the mesoscopic limit. In the linear-responce regime the conductance is quantized in…

Mesoscale and Nanoscale Physics · Physics 2014-11-14 Grzegorz Rut , Adam Rycerz

Nonreciprocal supercurrent refers to the phenomenon where the maximum dissipationless current in a superconductor depends on its direction of flow. This asymmetry underlies the operation of superconducting diodes and is often associated…

Noncentrosymmetric superconductors offer fascinating phenomena of quantum transport and optics such as nonreciprocal and nonlinear responses. Time-reversal symmetry breaking often plays an essential role in the emergence and enhancement of…

Superconductivity · Physics 2025-03-31 Hiroto Tanaka , Hikaru Watanabe , Youichi Yanase

Superconducting Nb thin films with rectangular arrays of submicron antidots have been systemically investigated by transport measurements. In low fields, the magnetoresistance curves demonstrate well-defined dips at integral and rational…

Mesoscale and Nanoscale Physics · Physics 2012-03-05 W. J. Zhang , S. K. He , H. F. Liu , G. M. Xue , H. Xiao , B. H. Li , Z. C. Wen , X. F. Han , S. P. Zhao , C. Z. Gu , X. G. Qiu , Victor V. Moshchalkov

A non-equilibrium theory of optical conductivity of dirty-limit superconductors and commensurate charge density wave is presented. We discuss the current response to different experimentally relevant light-field probe pulses and show that a…

Superconductivity · Physics 2017-08-08 Dante M. Kennes , Eli Y. Wilner , David R. Reichman , Andrew J. Millis