Extruding the vortex lattice: two reacting populations of dislocations

Watkins, Jonathan S.; Wilkin, N. K.

doi:10.48550/arxiv.1601.06542

Cited by 1 publication

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The structure of nonuniform vortex distributions has been studied in the context of the critical state in superconductors with random pinning [7] and, more recently, in superconductors with graded pinning arrays [8][9][10][11][12][13][14][15]. Vortex gradients can also be induced dynamically in clean superconductors [16,17]. However, the nonuniform vortex arrangements reported so far are essentially disordered.…”

Section: Introductionmentioning

confidence: 99%

Self-assembled vortex crystals induced by inhomogeneous magnetic textures

Menezes

Sardella

Cabral

et al. 2019

J. Phys.: Condens. Matter

View full text Add to dashboard Cite

We investigate the self-assembly of vortices in a type-II superconducting disk subjected to highly nonuniform confining potentials produced by inhomogeneous magnetic textures. Using a series of numerical experiments performed within the Ginzburg-Landau theory, we show that vortices can arrange spontaneously in highly nonuniform, defect-free crystals, reminiscent of conformal lattices, even though the strict conditions for the conformal crystal are not fulfilled. These results contradict continuum-limit theory, which predicts that the order of a nonuniform crystal is unavoidably frustrated by the presence of topological defects. By testing different cooling routes of the superconductor, we observed several different selfassembled configurations, each of which corresponding to one in a set of allowed conformal transformations, which depends on the magnetic and thermal histories of the system.

show abstract