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相关论文: Superconductivity near a magnetic domain wall

200 篇论文

We present an extensive theoretical investigation of the proximity effects that occur in Ferromagnet/Superconductor ($F/S$) systems. We use a numerical method to solve self consistently the Bogoliubov-de Gennes equations in the continuum.…

超导电性 · 物理学 2009-11-07 Klaus Halterman , Oriol T. Valls

The electronic and magnetic structures in the normal and superconducting states of iron pnictides are investigated by solving self-consistently the Bogoliubov-de Gennes equation. It is shown that strong electron correlations can induce…

超导电性 · 物理学 2011-07-07 Huaixiang Huang , Degang Zhang , Tao Zhou , C. S. Ting

The conductance of domain wall structures consisting of either stripes or cylindrical domains in multi-axial ferroelectric-semiconductors is analyzed. The effects of the domain size, wall tilt and curvature, on charge accumulation, are…

We theoretically investigate the transfer of angular momentum between a spin superfluid and a domain wall in an exchange coupled easy-axis and easy-plane magnetic insulator system. A domain wall in the easy-axis magnet absorbs spin angular…

介观与纳米尺度物理 · 物理学 2017-03-08 Pramey Upadhyaya , Se Kwon Kim , Yaroslav Tserkovnyak

We calculate the interaction between two magnetic domain walls during their current-induced motion. This interaction produces a separation-dependent resistance and also a differential velocity, causing domains in motion to experience an…

介观与纳米尺度物理 · 物理学 2011-11-28 E. A. Golovatski , M. E. Flatté

We study the dynamics of a magnetic domain wall, inserted in, or juxtaposed to, a conventional superconductor, via the passage of a spin polarized current through a FSF junction. Solving the Landau-Lifshitz-Gilbert equation of motion for…

超导电性 · 物理学 2015-06-03 P. D. Sacramento , L. C. Fernandes Silva , G. S. Nunes , M. A. N. Araujo , V. R. Vieira

Superconductor-ferromagnet tunnel junctions demonstrate giant thermoelectric effects which are being exploited to engineer ultra-sensitive terahertz radiation detectors. Here, we experimentally observe the recently predicted complete…

We investigate the superconducting proximity effect in a clean magnetic structure consisting of two ferromagnetic layered domains with antiparallel magnetizations in contact with a superconductor. Within the quasiclassical Green's function…

介观与纳米尺度物理 · 物理学 2009-11-11 M. A. Maleki , M. Zareyan

The conductance through a magnetic domain wall is calculated for the double exchange system as a function of energy and the width of the domain wall. It is shown that when the carrier density is low enough, the blockade is almost complete…

凝聚态物理 · 物理学 2009-10-28 Masanori Yamanaka , Naoto Nagaosa

Use of a spin polarized current for the manipulation of magnetic domain walls in ferromagnetic nanowires has been the subject of intensive research for many years. Recently, due to technological advancements, creating nano-contacts with…

介观与纳米尺度物理 · 物理学 2020-08-10 Hamidreza Kazemi , Sebastian Eggert , Nicholas Sedlmayr

We investigate theoretically the influence of the spin-orbit interaction of Rashba type on the magnetoresistance of a semiconducting ferromagnetic nanostructure with a laterally constrained domain wall. The domain wall is assumed sharp (on…

材料科学 · 物理学 2009-11-10 V. K. Dugaev , J. Barnas , J. Berakdar , V. I. Ivanov , W. Dobrowolski , V. F. Mitin

We show that in a magnetic nanowire with double magnetic domain walls, quantum interference results in spin-split quasistationary states localized mainly between the domain walls. Spin-flip-assisted transmission through the domain structure…

材料科学 · 物理学 2009-11-11 V. K. Dugaev , J. Berakdar , J. Barnas

The effect of impurity and domain-wall scattering on the electrical conductivity of disordered mesoscopic magnetic thin films is studied by use of computer simulation. The results indicate a reduction of resistivity due to a domain wall,…

介观与纳米尺度物理 · 物理学 2009-10-31 Philip A. E. Jonkers , Steven J. Pickering , Hans De Raedt , Gen Tatara

Domain walls are the topological defects that mediate polarization reversal in ferroelectrics, and they may exhibit quite different geometric and electronic structures compared to the bulk. Therefore, a detailed atomic-scale understanding…

材料科学 · 物理学 2017-01-12 Meng Ye , David Vanderbilt

We investigate the impact of electrostatics on the proximity effect between a magnetic insulator and a semiconductor wire in semiconductor-superconductor-magnetic insulator hybrid structures. By performing self-consistent Schr$\ddot{\rm…

介观与纳米尺度物理 · 物理学 2021-12-08 Benjamin D. Woods , Tudor D. Stanescu

We use spin-torque resonance to probe simultaneously and separately the dynamics of a magnetic domain wall and of magnetic domains in a nanostripe magnetic tunnel junction. Thanks to the large associated resistance variations we are able to…

We present high resolution tunneling spectroscopy data at very low temperatures on superconducting nanostructures of lead built with an STM. By applying magnetic fields, superconductivity is restricted to length scales of the order of the…

超导电性 · 物理学 2009-11-07 H. Suderow , E. Bascones , A. Izquierdo , F. Guinea , S. Vieira

We demonstrate that the hybrid structures consisting of a superconducting layer with an adjacent spin-textured ferromagnet demonstrate the variety of equilibrium magnetoelectric effects originating from coupling between the conduction…

超导电性 · 物理学 2019-06-18 D. S. Rabinovich , I. V. Bobkova , A. M. Bobkov , M. A. Silaev

In a superconducting ferromagnet, the superconducting state appears in the ferromagnetic phase where usually a domain structure has already developed. We study the influence of the superconducting screening currents on a stripe structure…

超导电性 · 物理学 2012-08-10 Vu Hung Dao , Sebastien Burdin , Alexandre Buzdin

Electronic transport through thin and laterally constrained domain walls in ferromagnetic nanojunctions is analyzed theoretically. The description is formulated in the basis of scattering states. The resistance of the domain wall is…

材料科学 · 物理学 2009-11-10 V. K. Dugaev , J. Berakdar , J. Barnas