Giant vortex structures in nanometer-scale spherical type-II superconducting samples

Shevtsova, O. N.

doi:10.1088/0953-2048/21/6/065010

Cited by 6 publications

(2 citation statements)

References 23 publications

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“…[28,62,63,649,650,[656][657][658][659][660][661][662][663][664][665][666][667][668][669] There are a few works addressing helices [29,30,677,678] and Möbius strips [691][692][693][694][695] while an extensive series of theoretical works is concerned with spherical shells. [10,[679][680][681][682][683][684][685][686][687]690,[696][697][698][699][700] • Curvilinear superconducting tapes: From an application point of view, great attention has been devoted to curvilinear superconducting tapes. [701] The reason for this is that in power transmission cables, superconducting tapes are wrap around a cylindrical former and the tapes can be curved conforming the shape of the cylinder.…”

Section: State Of the Artmentioning

confidence: 99%

New Dimension in Magnetism and Superconductivity: 3D and Curvilinear Nanoarchitectures

et al. 2021

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condensed matter physics, including cell membranes, [1] nematic crystals, [2,3] superfluids, [4] semiconductors, [5][6][7][8] ferromagnets, [9] and superconductors. [10,11] Currently, much attention is paid to strongly correlated electronic systems, for example, ferromagnets and superconductors, as they provide a unique tool to manipulate the topology of coexisting vector and scalar fields, associated with geometries of conventional systems.Until recently, in the case of magnetism, the influence of the geometry on the spin vector fields was addressed primarily by the design of the sample boundaries. This approach naturally brings the shape anisotropy to the system and leads to the formation of specific spin textures, for example, magnetic vortices [12] and antivortices [13] as well as provides control over the dynamics of the topologically nontrivial magnetic solitons. [14][15][16][17][18] This discussion also tackles the state of the art in modern experimental antiferromagnetism, where the design of the sample topography and boundaries allows to control the domain wall states. [19][20][21][22] With the development of novel fabrication techniques allowing to realize complex 3D architectures, not only the boundary effects but also the extrinsic geometrical properties (e.g., local curvatures) can be addressed rigorously for the case of ferromagnets [23][24][25][26][27] as well as superconductors. [28][29][30] The explored effects are directly related to the interplay between the Traditionally, the primary field, where curvature has been at the heart of research, is the theory of general relativity. In recent studies, however, the impact of curvilinear geometry enters various disciplines, ranging from solid-state physics over soft-matter physics, chemistry, and biology to mathematics, giving rise to a plethora of emerging domains such as curvilinear nematics, curvilinear studies of cell biology, curvilinear semiconductors, superfluidity, optics, 2D van der Waals materials, plasmonics, magnetism, and superconductivity. Here, the state of the art is summarized and prospects for future research in curvilinear solid-state systems exhibiting such fundamental cooperative phenomena as ferromagnetism, antiferromagnetism, and superconductivity are outlined. Highlighting the recent developments and current challenges in theory, fabrication, and characterization of curvilinear micro-and nanostructures, special attention is paid to perspective research directions entailing new physics and to their strong application potential. Overall, the perspective is aimed at crossing the boundaries between the magnetism and superconductivity communities and drawing attention to the conceptual aspects of how extension of structures into the third dimension and curvilinear geometry can modify existing and aid launching novel functionalities. In addition, the perspective should stimulate the development and dissemination of research and development oriented techniques to facilitate rapid transitions from laboratory demonstrations to industry-...

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Section: State Of the Artmentioning

confidence: 99%

New Dimension in Magnetism and Superconductivity: 3D and Curvilinear Nanoarchitectures

et al. 2021

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“…Over the last decade, advances in nanotechnology have inspired experimental and theoretical studies of vortex behaviour in superconductors with curvilinear surfaces: hollow cylinders and curved stripes [1,2,3,4,5,6], ferromagneticsuperconducting coreshell structures [7], superconducting spheres [8,9,10,11] and spherical nanoshells [12,13,14,15], including those with a magnetic dipole inside [16,17]. Nanoshells are hybrid nanostructures, which typically consist of a dielectric core (usually a silicon oxide nanograin), coated with a thin layer of metal [18,19].…”

Section: Introductionmentioning

confidence: 99%

Negative- regime in the ac magnetic response of superconductor nanoshells

Gladilin

Tempere

Devreese

et al. 2012

Solid State Communications

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The time-dependent Ginzburg-Landau formalism is applied to analyze the vortex states and vortex dynamics in superconducting spherical nanoshells, subjected to mutually perpendicular strong dc and weak ac magnetic fields.We demonstrate that nonuniformity of the shell thickness can dramatically affect the ac magnetic response of a 3D array of superconducting nanoshells.Remarkably, this response is strongly influenced not only by the relevant geometric and material parameters and the ac-field frequency but also by the magnitude of the applied dc field: by changing this field the real part of the effective ac magnetic permeability can be tuned from positive values significantly larger than one down to negative values.

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Complex-Shaped 3D Nanoarchitectures for Magnetism and Superconductivity

Dobrovolskiy

Pylypovskyi

Skorić

et al. 2022

Topics in Applied Physics

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Giant vortex structures in nanometer-scale spherical type-II superconducting samples

Abstract: Giant vortex structures can occur in type-II nanometer-scale spherical superconducting samples. These structures have been studied within the framework of the nonlinear Ginzburg-Landau theory. Different types of boundary condition were analyzed.

Cited by 6 publications

References 23 publications

New Dimension in Magnetism and Superconductivity: 3D and Curvilinear Nanoarchitectures

New Dimension in Magnetism and Superconductivity: 3D and Curvilinear Nanoarchitectures

Negative- regime in the ac magnetic response of superconductor nanoshells

Complex-Shaped 3D Nanoarchitectures for Magnetism and Superconductivity

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