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We study current-driven skyrmion motion in uniaxial thin film antiferromagnets in the presence of the Dzyaloshinskii-Moriya interactions and in an external magnetic field. We phenomenologically include relaxation and current-induced torques…

Mesoscale and Nanoscale Physics · Physics 2017-04-05 Hristo Velkov , Olena Gomonay , Maarten Beens , Georg Schwiete , Arne Brataas , Jairo Sinova , Rembert A. Duine

When a magnetic field is applied, the mixed state of a conventional Type II superconductor gets destroyed at the upper critical field Hc2, where the normal vortex cores overlap with each other. Here, we show that in the presence weak and…

Superconductivity · Physics 2017-08-16 Rini Ganguly , Indranil Roy , Anurag Banerjee , Harkirat Singh , Amit Ghosal , Pratap Raychaudhuri

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

In the frame of an exactly solvable model we calculate electric and magnetic fields created by uniformly moving lattice of Josephson vortices driven by the transport current in the magnetic field parallel to conducting layers. The…

Superconductivity · Physics 2007-05-23 S. N. Artemenko , S. V. Remizov

We propose and analyze a nanoengineered vortex array in a thin-film type-II superconductor as a magnetic lattice for ultracold atoms. This proposal addresses several of the key questions in the development of atomic quantum simulators. By…

Quantum Gases · Physics 2013-10-08 O. Romero-Isart , C. Navau , A. Sanchez , P. Zoller , J. I. Cirac

When an electron beam strikes a superconducting thin film near a pinned vortex, it locally increases the temperature-dependent London penetration depth and perturbs the circulating supercurrent, thereby distorting the vortex's magnetic…

Superconductivity · Physics 2010-08-31 John R. Clem

We investigate the phenomenon of decay of a supercurrent in a superconducting thin film in the absence of an applied magnetic field. The resulting zero-temperature resistance derives from two equally possible mechanisms: 1) quantum…

Superconductivity · Physics 2015-06-25 Roberto Iengo , Giancarlo Jug

Small-angle neutron scattering is used in combination with transport measurements to investigate the current-induced effects on the morphology of the intermediate mixed state domains in the intertype superconductor niobium. We report the…

Superconductivity · Physics 2022-02-02 X. S. Brems , S. Mühlbauer , W. Y. Córdoba-Camacho , A. A. Shanenko , A. Vagov , R. Cubitt

A theory for cuprate superconductivity predicts the existence of nano-sized loop currents called, ``spin-vortex-induced loop currents (SVILCs)''. In this wok, we first calculate magnetic fields produced by them in a single bilayer…

Superconductivity · Physics 2025-05-29 Hayato Taya , Yuto Takatsu , Hiroyasu Koizumi

The screening currents induced in a superconducting film by a magnetic annulus whose magnetization is perpendicular to the superconductor are calculated. We show that close to the superconductor transition temperature $T_c$ particular…

Superconductivity · Physics 2007-05-23 M. Amin Kayali

A spin-polarized current in a nanocontact to a magnetic film can create collective magnetic oscillations by compensating the magnetic damping. In particular, in materials with uniaxial magnetic anisotropy, droplet solitons have been…

Mesoscale and Nanoscale Physics · Physics 2018-12-05 Nahuel Statuto , Joan Manel Hernàndez , Andrew D. Kent , Ferran Macià

We study theoretically the interaction between soft magnetic and superconducting films. It is shown that the vortex induces a magnetization distribution in the magnetic film, thus modifying the magnetic field as well as the interactions…

Superconductivity · Physics 2007-05-23 Lars Egil Helseth

Phase structure of the (2+1)-dimensional model with four-fermion interaction of spin-1/2 quasiparticles (electrons) both in the fermion-antifermion (or chiral) and fermion-fermion (or superconducting) channels is considered at nonzero…

High Energy Physics - Theory · Physics 2015-06-12 K. G. Klimenko , R. N. Zhokhov , V. Ch. Zhukovsky

We present a theoretical study on nucleation and propagation of antiferromagnetic skyrmionium induced by spin current injection. A skyrmionium, also known as 2{\pi} skyrmion, is a vortex-like magnetic structure characterized by a…

Materials Science · Physics 2020-08-05 S. A. Obadero , Y. Yamane , C. A. Akosa , G. Tatara

We suggest a mechanism that may resolve a conflict raised by Link between the precession of a neutron star and the standard picture in which its core is composed of a mixture of a neutron superfluid and a type-II proton superconductor. We…

Astrophysics · Physics 2008-11-26 James Charbonneau , Ariel Zhitnitsky

The currents and field distributions of a vortex in a thin superconducting strip of a width $W$ is considered. It is shown that unlike infinite films where the vortex field crosses the film only in one direction (say, from the half-space…

Superconductivity · Physics 2023-10-04 N. Nakagawa , V. G. Kogan

An electric current generates a magnetic field, and magnetic fields cannot exist in the interior of type I superconductors. As a consequence of these two facts, electric currents can only flow near the surface of a type I superconducting…

Superconductivity · Physics 2021-08-25 J. E. Hirsch

Superconducting films in perpendicular magnetic field are found to rectify alternating currents. The effect has been observed both in plain and nanostructured superconducting films (niobium and lead). The rectified voltage appears both…

Superconductivity · Physics 2007-05-23 F. G. Aliev , A. P. Levanyuk , R. Villar , E. M. Gonzalez , V. V. Moshchalkov

Optical skyrmions have been widely explored in recent years. Among them, Stokes skyrmions require sophisticated wave engineering or photonic devices for their generation. We show that Stokes skyrmions can emerge spontaneously in…

Optics · Physics 2026-05-06 Marcos G. Barriopedro , Eduardo Oliva , Miguel A. Porras

Recent studies show superconductivity provides new perspectives on spintronics. We study a heterostructure composed of an s-wave superconductor and a cubic chiral-magnet that can stabilize a topological spin texture, a skyrmion. We propose…

Mesoscale and Nanoscale Physics · Physics 2016-12-21 Rina Takashima , Satoshi Fujimoto
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