Magnetic nonreciprocity in a hybrid device of asymmetric artificial spin-ice-superconductors

Abstract

Controlling the size and distribution of potential barriers within a medium of interacting particles can unveil unique collective behaviors and innovative functionalities. In this study, we introduce a unique superconducting hybrid device using a novel artificial spin ice structure composed of asymmetric nanomagnets. This structure forms a distinctive superconducting pinning potential that steers unconventional motion of superconducting vortices, thereby inducing a magnetic nonreciprocal effect, in contrast to the electric nonreciprocal effect commonly observed in superconducting diodes. Furthermore, the polarity of the magnetic nonreciprocity is in-situ reversible through the tunable magnetic patterns of artificial spin ice. Our findings demonstrate that artificial spin ice not only precisely modulates superconducting characteristics but also opens the door to novel functionalities, offering a groundbreaking paradigm for superconducting electronics.

References in corpus (6)

• Dipole-induced vortex ratchets in superconducting films with arrays of micromagnets
• Local measurement of the superfluid density in the pnictide superconductor Ba(Fe${}_{1-x}$Co${}_x$)${}_2$As${}_2$ across the superconducting dome
• Enhanced pinning and proliferation of matching effects in a superconducting film with a Penrose array of magnetic dots
• Tunable pinning in superconducting films with magnetic micro-loops
• Crystallizing Kagome artificial spin ice
• Reconfigurable pinwheel artificial-spin-ice and superconductor hybrid device