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We show that under an a.c. magnetic field excitation the vortex lattice in a superconductor with periodic array of holes can undergo a transition from a Mott-like state where each vortex is localized in a hole, to a metal-like state where…

We present a large-scale view of the magnetic field in the central 2deg * 2deg region of our Galaxy. The polarization of point sources has been measured in the J, H, and Ks bands using the near-infrared polarimetric camera SIRPOL on the 1.4…

The vortex core shape in the three dimensional Heisenberg magnet is essentially influenced by a surface anisotropy. We predict that depending of the surface anisotropy type there appears barrel- or pillow-shaped deformation of the vortex…

介观与纳米尺度物理 · 物理学 2015-04-14 Oleksandr V. Pylypovskyi , Denis D. Sheka , Volodymyr P. Kravchuk , Yuri Gaididei

When reflected from an interface, a laser beam generally drifts and tilts away from the path predicted by ray optics, an intriguing consequence of its finite transverse extent. Such beam shifts manifest more dramatically for structured…

We discuss a possible mechanism of the spin-transfer induced oscillations of a vortex in the free layer of spin-valve nanostructures, in which the polarizer layer has a planar magnetization. We demonstrate that if such planar polarizer is…

材料科学 · 物理学 2015-05-18 A. V. Khvalkovskiy , J. Grollier , N. Locatelli , Ya. V. Gorbunov , K. A. Zvezdin , V. Cros

We study an asymmetric in field magnetoresistance that is frequently observed in magnetic films and, in particular, the odd longitudinal voltage peaks that appear during magnetization reversal in ferromagnetic films, with out-of-plane…

强关联电子 · 物理学 2015-05-13 A. Segal , O. Shaya , M. Karpovski , A. Gerber

Magnetic axis rotation (MAR) in ferromagnetic (FM) layers is crucial for strain-mediated converse magnetoelectric coupling. Employing the density functional theory (DFT), we computationally study the magnetic anisotropy of selected deformed…

材料科学 · 物理学 2022-12-02 Zefeng Cai , Ben Xu

We develop the field theory of antiferromagnets to layered structures on BCT crystal lattices with nearest-neibour and next-nearest-neighbour ferro- and/or antiferromagnetic interactions. For this aim the field theoretical counterpart of a…

统计力学 · 物理学 2017-01-09 Dimo I. Uzunov

We show that in strong (quantizing) magnetic fields "ordinary" free magnetic polaron in diluted magnetic semiconductors (of type $A^2MeB^6$, where Me=Fe, Mn) exists in the form of vortex lattice quite similar to that in type II…

材料科学 · 物理学 2016-08-31 V. A. Stephanovich

We demonstrate current-induced bipolar switching in in-plane magnetized spin-valve devices that incorporate a perpendicularly magnetized spin polarizing layer. Further, hysteretic transitions into a state with intermediate resistance occur…

介观与纳米尺度物理 · 物理学 2015-06-11 Li Ye , Georg Wolf , Daniele Pinna , Gabriel D. Chaves , Andrew D. Kent

The intervortex interaction is investigated in very anisotropic layered superconductors in tilted magnetic field. In such a case, the crossing lattice of Abrikosov vortices (AVs) and Josephson vortices (JVs) appears. The interaction between…

超导电性 · 物理学 2009-11-07 A. I. Buzdin , I. Baladie

A detailed numerical analysis of the magnetization reversal processes in multisegmented nanowire arrays was developed. The nanowires have a long aspect ratio and are formed by magnetic and non-magnetic sections alternately arranged in such…

介观与纳米尺度物理 · 物理学 2015-07-09 E. A. Rando , S. Allende

We investigate the magnetization processes of a standard Ginzburg-Landau model for chiral p-wave superconducting states in an applied magnetic field. We find that the phase diagram is dominated by triangular lattices of doubly quantized…

超导电性 · 物理学 2016-09-15 Julien Garaud , Egor Babaev , Troels Arnfred Bojesen , Asle Sudbø

The magnetic field $h_z$ of a moving Pearl vortex in a superconducting thin-film in $(x,y)$ plane is studied with the help of time-dependent London equation. It is found that for a vortex at the origin moving in $+x$ direction, $h_z(x,y)$…

超导电性 · 物理学 2021-02-02 V. G. Kogan , N. Nakagawa

A magnetic vortex has attracted significant attention since it is a topologically stable magnetic structure in a soft magnetic nanodisk. Many studies have been devoted to understanding the nature of magnetic vortex in isolated systems. Here…

材料科学 · 物理学 2016-12-14 Weinan Zhou , Takeshi Seki , Hiroko Arai , Hiroshi Imamura , Koki Takanashi

In this work, we study the spontaneous formation of a vortex lattice in two-dimensional valley polarized superconductors due to orbital magnetization. The screening of magnetic field is weak for two-dimension superconductors, allowing for…

超导电性 · 物理学 2025-05-30 Ammar Jahin , Shi-Zeng Lin

A method is developed to compute minimal energy vortex lattices in a general Ginzburg-Landau model of a superconductor subjected to an applied magnetic field. The model may have any number of components and may be spatially anisotropic. The…

超导电性 · 物理学 2025-03-03 Martin Speight , Thomas Winyard

The paper reports on the dynamics of a 3-dimensional dusty plasma in a strong magnetic field. An electrostatic potential well created by a conducting or non-conducting ring in the rf discharge confines the charged dust particles. In the…

等离子体物理 · 物理学 2020-06-24 Mangilal Choudhary , Roman Bergert , Slobodan Mitic , Markus H. Thoma

In magnetic fields applied within the angular range of the surface superconductivity state a magnetically anisotropic layered medium is created in structurally isotropic, sufficiently thick niobium films. Surface (Kulik) vortices residing…

超导电性 · 物理学 2009-11-10 Alexey V. Pan , Pablo Esquinazi

Magnetic vortices have generated intense interest in recent years due to their unique reversal mechanisms, fascinating topological properties, and exciting potential applications. Additionally, the exchange coupling of magnetic vortices to…