The spike state in type-I mesoscopic superconductor

Oliveira, Isaías G. de; Cadorim, Leonardo Rodrigues; Romaguera, Antonio R. de C.; Sardella, Edson; Gomes, Rodolpho Ribeiro; Doria, Mauro M.

doi:10.1016/j.physleta.2021.127457

Cited by 6 publications

(3 citation statements)

References 42 publications

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“…The general form of the time-dependent Ginzburg-Landau equations for a single-band (Θ(ψ i ) = 0) in dimensionless units are given by [18][19][20][21]:…”

Section: Theoretical Formalismmentioning

confidence: 99%

“…With this, the DeGenenes parameter or extrapolation length is used as a boundary condition, proposed during half of the last century and which has been used to describe the interaction between different types of materials with single-band superconductors and whose generality is to describe the proximity effect in the system. However, in multi-band systems there is no expression that makes a simile with this important extrapolation parameter at the superconducting boundary [18][19][20][21][22][23][24].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Proximity effects in a single- and two-band superconducting heterostructures: time-dependent Ginzburg-Landau approach.

Aguirre,

Faúndez,

Díaz

et al. 2024

Preprint

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In this work, we study the proximity effects in a single-and two-band superconducting three-dimensional heterostructure, described by two condensates (condensate 1 and condensate 2) under the presence of an external magnetic field perpendicular to the heterostructure. The distance between the interface of both condensate is given by the parameter λ ′. We solve the time-dependent Ginzburg-Landau equations considering a Josephson-like coupling to explore properties such as magnetization, Gibbs free energy and the Abrikosov vortex state. We considered three cases, in the case 1: both condensates are composed by a single-band, case 2: the condensates are composed by two-bands and case 3: the condensate 1 has a single-band and the condensate 2 has two-bands. As a results, we highlight the variation of the first critical field and the novel vortex configuration induced by the proximity effect between the superconducting condensates. This phenomenon exerts a substantial influence on the arrangement of vortex in each of the superconducting bands.

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“…The general form of the time-dependent Ginzburg-Landau equations for a single-band (Θ(ψ i ) = 0) in dimensionless units are given by [18][19][20][21]:…”

Section: Theoretical Formalismmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Proximity effects in a single- and two-band superconducting heterostructures: time-dependent Ginzburg-Landau approach.

Aguirre,

Faúndez,

Díaz

et al. 2024

Preprint

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show abstract

“…When Type 1 materials reach this temperature, their resistance and magnetic field properties drop dramatically and they become superconducting [33,34]. According to the BCS theory put forward by Bardeen, Cooper, and Schrieffer in 1957, the slowing down of molecular activity creates a favorable environment for the Cooper effect, so that dipoles can easily overcome molecular barriers and act as free electrons [35][36][37][38][39][40][41][42]. Among the metals, the highest conductivity belongs to Au, Ag and Cu, respectively, but these three elements are not superconducting [43,44].…”

Section: Type 1 Superconductorsmentioning

confidence: 99%

Soft Superconductors: Materials and Applications

Bugdayci

2022

Superconductors

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Superconductors emerge as materials that offer great benefits with the superior properties they offer. In this study, the general properties of superconducting materials, their history and properties of soft superconductors are emphasized. Superconductivity mechanisms are investigated through crystal structures and BCS theory. Superconductivity properties of A3B, perovskite, MMo6X8&M2A3X3 compounds were evaluated over crystal symmetries. In addition, research on the production methods and usage areas of superconductors are presented in this section.

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