Pinning effects in a two-dimensional cluster glass

Wang, Wenlong; Díaz-Méndez, Rogelio; Wallin, Mats; Lidmar, Jack; Babaev, Egor

doi:10.1103/physrevb.104.144206

Cited by 6 publications

(4 citation statements)

References 46 publications

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“…they can have novel forms of instabilities [3][4][5][6]. In addition, these fascinating waves and the concept of a vector order parameter are also very relevant in nonlinear optics [7], the p-wave superfluid 3 He, and the d-wave unconventional superconductors, generating very intriguing topological defects such as disclinations, cluster-forming vortices [8], and vortices with a halfinteger circulation [9].…”

Section: Introductionmentioning

confidence: 99%

Systematic solitary waves from their linear limits in two-component Bose–Einstein condensates with unequal dispersion coefficients

Wang

2023

J. Phys. B: At. Mol. Opt. Phys.

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We systematically construct vector solitary waves in harmonically trapped one-dimensional two-component Bose-Einstein condensates with unequal dispersion coefﬁcients by a numerical continuation in chemical potentials from the respective analytic low-density linear limits to the high-density nonlinear Thomas-Fermi regime. The main feature of the linear states herein is that the component with the larger quantum number has instead a smaller linear eigenenergy, enabled by suitable unequal dispersion coefﬁcients, leading to new series of solutions compared with the states similarly obtained in the equal dispersion setting. Particularly, the lowest-lying series gives the well-known dark-anti-dark waves, and the second series yields the dark-multi-dark states, and the following series become progressively more complex in their wave structures. The Bogoliubov-de Gennes spectra analysis shows that most of these states bear unstable modes, but they can be long-lived and remarkably all of them can be fully stabilized in suitable parameter regimes.

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Section: Introductionmentioning

confidence: 99%

Systematic solitary waves from their linear limits in two-component Bose–Einstein condensates with unequal dispersion coefficients

Wang

2023

J. Phys. B: At. Mol. Opt. Phys.

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“…W. Wangy y colaboradores estudiaron numéricamente la formación de vidrios en sistema de partículas monodispersas formadoras de agrupaciones bidimensionales en presencia de centros de anclaje mediado por las fuerzas entre vórtices. Ellos encontrando que dichos sistemas forman cristales en racimo debido a las interacciones entere vórtices y que una pequeña densidad de centros de anclaje tiene un efecto en la formación de vidrio de vórtice [17]. E. Babaev y colaboradores revisaron la derivación microscópica de las condiciones de contorno superconductor-vacío para el modelo de Ginzburg-Landau utilizando la teoría Bardeen-Cooper-Schrieffer (BCS), encontraron que los estados límite con una 𝜏c más alta encontrados en la teoría BCS, también están presentes en la teoría GL derivada microscópicamente [18], [19], [20].…”

Section: Introductionunclassified

Diagramas de fase J1(τ) y J1(γ) de un filme superconductor

2023

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En esta contribución utilizamos la teoría de Ginzburg-Landau dependiente del tiempo en presencia de corrientes a campo magnético nulo para investigar la dinámica de vórtices cinemáticos en una lámina superconductoras mesoscópicas con un pilar central delgado. Nuestro estudio abarca dos casos: (a) un pilar central al cual variamos su altura, simulada mediante el parámetro T > 1;0, con una interfase superconductor-vacío en toda la muestra, simulada con el parámetro γ = 1;0; (b) un pilar central con una condición de contorno superconductor-superconductor a mayor temperatura crítica Tc, (γ > 1;0); consideramos también una muestra homogénea, es decir sin pilar T= 1;0. Analizamos la influencia de diferentes condiciones de contorno en el estado de vórtice cinemáticos y sus efectos en la respuesta magnética mediante el análisis de las curva corriente-voltaje y resistividad-corriente; también es calculada la velocidad de aniquilación de los pares vórtice-anti vórtice en función de la corriente aplicada para varias condiciones de contorno. Los resultados muestran que las corrientes críticas y la dinámica de la aniquilación de vórtices cinemáticos son altamente dependiente de la altura del pilar y de las condiciones de contorno.

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“…The behaviour of the IMS has been a subject of several theoretical and experimental studies in recent years [3][4][5][6][7][8][9][10]13] where the temperature-field phase diagram in samples of different purity was mostly explored. Furthermore, a recent theoretical work [14] studied pinning effects in a two-dimensional cluster glass, as found in and motivated by systems with non-monotonic intervortex interactions such as, e.g. the IMS [2].…”

Section: Introductionmentioning

confidence: 99%

Current-induced self-organisation of mixed superconducting states

Brems

Mühlbauer

Córdoba-Camacho

et al. 2022

Supercond. Sci. Technol.

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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 inter-type superconductor niobium. We report the robust self-organisation of the vortex lattice domains to elongated parallel stripes perpendicular to the applied current in a steady-state. The experimental results for the formation of the superstructure are supported by theoretical calculations, which highlight important details of the vortex matter evolution. The investigation demonstrates a mechanism of a spontaneous pattern formation that is closely related to the universal physics governing the intermediate mixed state in low-κ superconductors.

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Pinning effects in a two-dimensional cluster glass

Cited by 6 publications

References 46 publications

Systematic solitary waves from their linear limits in two-component Bose–Einstein condensates with unequal dispersion coefficients

Systematic solitary waves from their linear limits in two-component Bose–Einstein condensates with unequal dispersion coefficients

Diagramas de fase J1(τ) y J1(γ) de un filme superconductor

Current-induced self-organisation of mixed superconducting states

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