Vortex shells in mesoscopic triangles of amorphous superconducting thin films

Abstract

Direct observation of vortex states confined in mesoscopic regular triangle dots of amorphous MoGe thin films was made with a scanning superconducting quantum interference device microscope. The observed magnetic images illustrate clearly how vortices are distributed over the triangle dots by forming not only commensurate triangular clusters, but also unique patterns imposed by incommensurability. We discuss the results in terms of vortex shells and construct the packing sequence of vortices in the multiple shell structure.

2 figures, 1 table, 28th International Symposium on Superconductivity(2015)

References in corpus (4)

• Vortex states in mesoscopic superconducting squares: Formation of vortex shells
• Formation and Size-Dependence of Vortex Shells in Mesoscopic Superconducting Niobium Disks
• Geometrical confinement effects in layered mesoscopic vortex-matter
• Commensurate and Incommensurate Vortex States Confined in Mesoscopic Triangles of Weak Pinning Superconducting Thin Films

Cited by in corpus (2)

• Robust and tunable coreless vortices and fractional vortices in chiral $d$-wave superconductors
• SuperConga: an open-source framework for mesoscopic superconductivity