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相关论文: Vortices in spin-0 superfluids carry magnetic flux

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We have studied spinning superfluid $^4$He nanodroplets at zero temperature using Density Functional theory. Due to the irrotational character of the superfluid flow, the shapes of the spinning nanodroplets are very different from those of…

介观与纳米尺度物理 · 物理学 2018-05-30 Francesco Ancilotto , Manuel Barranco , Marti Pi

Superfluid vortices are quantum excitations carrying quantized amount of orbital angular momentum in a phase where global symmetry is spontaneously broken. We address a question of whether magnetic vortices in superconductors with dynamical…

高能物理 - 理论 · 物理学 2021-07-07 Kenji Fukushima , Yoshimasa Hidaka , Ho-Ung Yee

It is shown that in a magnetic field the vortices in superfluid electron-hole systems carry a real electrical charge. The charge value depends on the relation between the magnetic length and the Bohr radiuses of electrons and holes. In…

介观与纳米尺度物理 · 物理学 2009-11-07 S. I. Shevchenko

Neutron scattering is used to characterise the magnetism of the vortices for the optimally doped high-temperature superconductor La(2-x)Sr(x)CuO(4) (x=0.163) in an applied magnetic field. As temperature is reduced, low frequency spin…

强关联电子 · 物理学 2016-08-16 B Lake , G Aeppli , KN Clausen , DF McMorrow , K Lefmann , NE Hussey , N Mangkorntong , M Nohara , H Takagi , TE Mason , A Schröder

Breaking of time-reversal and point-group spatial symmetries can have a profound impact on superconductivity. One of the most extraordinary effects, due to the application of a magnetic field, is represented by the Abrikosov vortices with…

超导电性 · 物理学 2022-04-21 Maria Teresa Mercaldo , Carmine Ortix , Francesco Giazotto , Mario Cuoco

As first pointed out by Bardeen and Ginzburg in the early sixties, the amount of magnetic flux carried by vortices depends on their distance to the sample edge and can be smaller than one flux quantum, f0 = h/2e. In bulk superconductors,…

The interplay between superconductivity and magnetism gives rise to many intriguing and exciting phenomena. In this Letter we report about a novel manifestation of this interplay: a temperature induced phase transition between different…

Flux vortices in superconductors can be imaged using transmission electron microscopy because the electron beam is deflected by the magnetic flux associated with the vortices. This technique has a better spatial and temporal resolution than…

超导电性 · 物理学 2009-10-31 J. C. Loudon , P. A. Midgley

We show that some experimentally observed features of vortex matter in high temperature superconductors may be interpreted in simpler ways than it is usually done. In particular, we consider magnetic flux creep at low temperatures as well…

超导电性 · 物理学 2007-05-23 I. L. Landau , H. R. Ott

Drain vortices are among the most common vortices observed in everyday life, yet their physics is complex due to the competition of vorticity's transport and diffusion, and the presence of viscous layers and a free surface. Recently, it has…

流体动力学 · 物理学 2023-02-22 Wandrille Ruffenach , Luca Galantucci , Carlo F. Barenghi

A superconducting rod with a magnetic moment on top develops vortices obtained here through 3D calculations of the Ginzburg-Landau theory. The inhomogeneity of the applied field brings new properties to the vortex patterns that vary…

超导电性 · 物理学 2015-05-14 Antonio R. de C. Romaguera , Mauro M. Doria , F. M. Peeters

Color magnetic flux tubes appear in the color-flavor locked phase of high density QCD, which exhibits color superconductivity as well as superfluidity. They are non-Abelian superfluid vortices and are accompanied by orientational zero modes…

高能物理 - 唯象学 · 物理学 2010-01-24 Minoru Eto , Eiji Nakano , Muneto Nitta

In-situ observations in the Earth's and Saturn's magnetosheaths and in the solar wind reveal the presence of Alfv\'en vortices as intermittent structures in the range of scales from fluid lengths down to few ion lengths. The density and the…

等离子体物理 · 物理学 2020-04-16 Dusan Jovanovic , Olga Alexandrova , Milan Maksimovic , Milivoj Belic

We predict the very large spin Hall effect in type-II superconductors which mechanism is drastically different from the previously known ones. We find that in the flux-flow regime the spin is transported by the spin-polarized Abrikosov…

超导电性 · 物理学 2019-04-12 Artjom Vargunin , Mikhail Silaev

We have studied the appearance of vortex arrays in a rotating helium-4 nanodroplet at zero temperature within density functional theory. Our results are compared with those for classical rotating fluid drops used to analyze the shape and…

介观与纳米尺度物理 · 物理学 2015-06-23 Francesco Ancilotto , Marti Pi , Manuel Barranco

The paper reviews a concept of induced spin-flop domain inside vortices in an antiferromagnetic superconductor. Such phenomenon may occur when an external magnetic field is strong enough to flip over magnetic moments in the core of the…

超导电性 · 物理学 2009-11-07 Tomasz Krzyszton

Superfluid $^3$He-B possesses three locally stable vortices known as a normal-core vortex ($o$-vortex), an A-phase-core vortex ($v$-vortex), and a double-core vortex ($d$-vortex). In this work, we study the effects of a magnetic field…

超导电性 · 物理学 2019-03-27 Kenichi Kasamatsu , Ryota Mizuno , Tetsuo Ohmi , Mikio Nakahara

We numerically model experiments in which large-scale vortex rings - bundles of quantized vortex loops - are created in superfluid helium by a piston-cylinder arrangement. We show that the presence of a normal fluid vortex ring together…

流体动力学 · 物理学 2015-06-23 Daniel H. Wacks , Andrew W. Baggaley , Carlo F. Barenghi

The spin-transfer effect is investigated for the vortex state of a magnetic nanodot. A spin current is shown to act similarly to an effective magnetic field perpendicular to the nanodot. Then a vortex with magnetization (polarity) parallel…

其他凝聚态物理 · 物理学 2009-11-11 Jean-Guy Caputo , Yuri Gaididei , Franz G. Mertens , Denis D. Sheka

Superconductors have two key characteristics. They expel magnetic field and they conduct electrical current with zero resistance. However, both properties are compromised in high magnetic fields which can penetrate the material and create a…

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