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相关论文: Magnetic-Field-Induced Stabilization of Non-Equili…

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A systematic study has been carried out on the previously reported "magnetic-field-induced superconductivity" of Zn nanowires. By varying parameters such as magnetic field orientation and wire length, the results provide evidence that the…

介观与纳米尺度物理 · 物理学 2015-05-18 Yu Chen , Yen-Hsiang Lin , S. D. Snyder , A. M. Goldman

We show that a magnetic field can influnce the proximity effect in NS junctions via diamagnetic screening current flowing in the superconductor. Using ballistic quasi-one-dimensional (Q1D) electron channels as an example, we show that the…

介观与纳米尺度物理 · 物理学 2009-11-10 Grygoriy Tkachov , Vladimir I. Fal'ko

We report experimental evidence of the effect of an applied magnetic field on the non-thermal magnetic relaxation in a disk-shaped type-I lead superconductor. The time evolution of the irreversible magnetization proves to be logarithmic for…

超导电性 · 物理学 2015-05-28 Saül Vélez , Ricardo Zarzuela , Antoni García-Santiago , Javier Tejada

The magnetic field is shown to affect significantly non-equilibrium quasiparticle (QP) distributions under conditions of inverse proximity effect on the remarkable example of a single-electron hybrid turnstile. This effect suppresses the…

We address here the superconductivity quenching under an external magnetic field of amplitudes up to 1 T and in the so-called "thermal smallness" condition, when the microbridge width becomes smaller than the thermal diffusion length of…

超导电性 · 物理学 2014-11-05 J. M. Doval , J. Maza , C. Torron , J. A. Veira , M. Tello , F. Vidal

A single static magnetic impurity in a fully-gapped superconductor leads to formation of an intragap quasiparticle bound state. At temperatures much below the superconducting transition, the energy relaxation and spin dephasing of the state…

强关联电子 · 物理学 2014-10-01 Ivar Martin , Dmitry Mozyrsky

Hybrid Superconductor/Ferromagnet structures have been investigated recently to address the interplay between ferromagnetism and superconductivity. They also open up new routes for the investigation of out of equilibrium superconductivity.…

超导电性 · 物理学 2015-05-13 R. Latempa , M. Aprili , I. Petkovic

The equilibrium topology of superconducting and normal domains in flat type-I superconductors is investigated. Important improvements with respect to previous work are: (1) the energy of the external magnetic field, as deformed by the…

超导电性 · 物理学 2015-06-16 John R. Clem , Ruslan Prozorov , R. J. Wijngaarden

Four-terminal resistance measurements have been carried out on Zn nanowires formed using electron-beam lithography. When driven resistive by current, these wires re-enter the superconducting state upon application of small magnetic fields.…

介观与纳米尺度物理 · 物理学 2009-04-16 Yu Chen , S. Snyder , A. M. Goldman

The influence of a magnetic field on superconductivity is usually described either phenomenologically, using Ginzburg-Landau theory, or semiclassically using Gor'kov theory. In this article we discuss the influence of magnetic fields on the…

凝聚态物理 · 物理学 2015-06-25 A. H. MacDonald , Hiroshi Akera , M. R. Norman

Magnetic relaxation in a MgB$_2$ superconductor was measured. The temperature dependence of the normalized relaxation rate was determined for three different magnetic fields. By extrapolating these rates to T=0 K, we find that these…

超导电性 · 物理学 2009-11-07 Y. Z. Zhang , R. Deltour , H. H. Wen , C. Q. Jin , Y. M. Ni , S. L Jia , G. C. Che , Z. X. Zhao

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…

凝聚态物理 · 物理学 2009-10-28 Yasumasa Hasegawa , Mitake Miyazaki

At high magnetic field, the semiclassical approximation which underlies the Ginzburg-Landau theory of the mixed state of type II superconductors breaks down. In a quasi-1D superconductor with an {\it open Fermi surface}, a high magnetic…

凝聚态物理 · 物理学 2009-10-22 N. Dupuis

Spatially resolved relaxation of non-equilibrium quasiparticles in a superconductor at ultra-low temperatures was experimentally studied. It was found that the quasiparticle injection through a tunnel junction results in modification of the…

超导电性 · 物理学 2011-03-22 K. Yu. Arutyunov , H. -P. Auraneva , A. S. Vasenko

Quasiparticle interference in a d-wave superconductor with weak disorder produces distinctive peaks in the Fourier-transformed local density of states measured by scanning tunneling spectroscopy. We predict that amplitudes of these peaks…

超导电性 · 物理学 2009-11-13 T. Pereg-Barnea , M. Franz

We theoretically investigate the supercurrent flow in a Josephson junction consisting of two spin-split superconductors combined by a normal metal weak link. The normal metal may be driven out of equilibrium, thus modifying the electron and…

超导电性 · 物理学 2025-08-06 Chi Sun , Jacob Linder

The specific property of a planar tunnel junction with thin-film diffusive plates and long enough leads is an essential enhancement of its transmission coefficient compared to the bare transparency of the tunnel barrier [1,2]. In…

超导电性 · 物理学 2017-01-04 E. V. Bezuglyi , A. S. Vasenko , E. N. Bratus'

A superconducting tunnel junction is used to directly extract quasiparticles from one of the leads of a single-Cooper-pair-transistor. The consequent reduction in quasiparticle density causes a lower rate of quasiparticle tunneling onto the…

超导电性 · 物理学 2012-09-18 A. J. Ferguson

A magnetic field relaxation at the center of a pulse-magnetized single-domain Y-Ba-Cu-O superconductor at 78K has been studied. In case of a weak magnetization, the magnetic flux density increases logarithmically and normalized relaxation…

We study the proximity effect in a superconductor (S)-normal metal (N) bilayer under in-plane magnetic field. A compensation between the Zeeman effect and the energy splitting between bonding and anti-bonding levels leads to a magnetic…

超导电性 · 物理学 2015-05-28 Xavier Montiel , Alexandre I. Buzdin
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