Cascading Proximity Effects in Rotating Magnetizations

Abstract

We demonstrate two effects that occur in all diffusive superconducting-magnetic heterostructures with rotating magnetization: the reappearance of singlet $|0,0>$ correlations deep in the magnetic material and a cascade of $s=1$, $m=0,\pm 1$ components (in the two spin-$1/2$ basis $|s,m>$). We do so by examining the order parameter and Josephson current through a multilayer with five mutually perpendicular ferromagnets. The properties of the middle layer determine whether the current is due to $m=0$ or $m\ne 0$ contributions. We conclude that so-called long- and short-range components are present across a proximity system with rotating magnetization.

5 pages, 4 figures

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Cited by in corpus (6)

• Competitive 0 and π states in S/F multilayers: multimode approach
• Long Range Triplet Josephson Current and $0-\pi$ Transition in Tunable Domain Walls
• Anomalous current-voltage characteristics of SFIFS Josephson junctions with weak ferromagnetic interlayers
• Classification of magnetic inhomogeneities and $0-\pi$ transitions in superconducting-magnetic hybrid structures
• The role of canting and depleted-triplet minima in superconducting spin valve structures
• Phase separation and proximity effects in itinerant ferromagnet-superconductor heterostructures