Voltage Induced by Superconducting Vortices in Open Nanostructured Microtubes (Phys. Status Solidi RRL 1/2019)
R. O. Rezaev, Evgeny Posenitskiy, Ekaterina I. Smirnova, Evgenii Levchenko, Oliver G. Schmidt, Vladimir M. Fomin · physica status solidi (RRL) - Rapid Research Letters · 2019
The cover image represents an array of open superconductor nanostructured microtubes in a magnetic field (shown with arrows), which is perpendicular to the tubes' axes, in a transport current that flows from one edge of a slit to the other. A nontrivial topology of the screening currents in an open tube leads to the dynamic patterns of superconducting vortices that depend on the curvature, as reported by Roman Rezaev and co-authors in article no. 1800251. A tube fabricated by the roll-up technology is demonstrated to produce less dissipation as compared to a planar membrane under the same magnetic field and at the same transport current. The induced voltage as a function of the magnetic field provides a unique information about vortex patterns, which helps understand topology- and geometry-driven effects on dissipation characteristics of nanostructured superconductor materials.