English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Pinning interactions between superconducting vortices in Nb and magnetic Nidots were studied as a function of current and temperature to clarify thenature of pinning mechanisms. A strong current dependence is found for a squarearray of dots, with a temperature dependent optimum current for the observationof periodic pinning, that decreases with temperature as (1-T/Tc)3/2. This sametemperature dependence is found for the critical current at the first matchingfield with a rectangular array of dots. The analysis of these results allows tonarrow the possible pinning mechanisms to a combination of two: the interactionbetween the vortex and the magnetic moment of the dot and the proximity effect.Moreover, for the rectangular dot array, the temperature dependence of thecrossover between the low field regime with a rectangular vortex lattice to thehigh field regime with a square configuration has been studied. It is foundthat the crossover field increases with decreasing temperature. This dependenceindicates a change in the balance between elastic and pinning energies,associated with dynamical effects of the vortex lattice in the high fieldrange.Comment: 12 text pages (revtex), 6 figures (1st jpeg, 2nd-6th postscript)  accepted in Physical Review

Temperature dependence and mechanisms of vortex pinning by periodic arrays of Ni dots in Nb films