Crossed Andreev reflection-induced magnetoresistance

Abstract

We show that very large negative magnetoresistance can be obtained in magnetic trilayers in a current-in-plane geometry owing to the existence of crossed Andreev reflection. This spin-valve consists of a thin superconducting film sandwiched between two ferromagnetic layers whose magnetization is allowed to be either parallelly or antiparallelly aligned. For a suitable choice of structure parameters and nearly fully spin-polarized ferromagnets the magnetoresistance can exceed -80%. Our results are relevant for the design and implementation of spintronic devices exploiting ferromagnet-superconductor structures.

5 pages, 4 figures, final published version

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Cited by in corpus (19)

• Circuit theory of crossed Andreev reflection
• Non-local Andreev reflection in superconducting quantum dots
• Crossed Andreev reflection at spin-active interfaces
• Positive noise cross-correlations in superconducting hybrids: Roles of interfaces and interactions
• Electrically controlled crossed Andreev reflection in two-dimensional antiferromagnets
• In search for the superconducting spin-switch: Magnetization induced resistance switching effects in La${}_{0.67}$Sr${}_{0.33}$MnO${}_3$/YBa${}_2$Cu${}_3$O${}_{7-\delta }$ bi- and trilayers
• Positive current cross-correlations in a highly transparent normal-superconducting beam splitter due to synchronized Andreev and inverse Andreev reflections
• Self-consistent microscopic calculations for non-local transport through nanoscale superconductors
• Spin-Transfer Torque and Magnetoresistance in Superconducting Spin-Valves
• Crossed Andreev reflection in spin-polarized chiral edge states due to the Meissner effect
• Hysteretic magnetic pinning and reversible resistance switching in High-Tc superconductor/ferromagnet multilayers
• Spintronics with NSN Junction of one-dimensional quantum wires : A study of Pure Spin Current and Magnetoresistance
• Nonlocal transport mediated by nonlocal Hikami boxes: Condensation of evanescent quasiparticles injected into the superconducting gap
• Transport in multi-terminal superconductor/ferromagnet junctions having spin-dependent interfaces
• Magnetoresistance and transistor-like behavior of double quantum dots connected to ferromagnetic and superconductor leads
• Non local Andreev reflection in a carbon nanotube superconducting quantum interference device
• Electron-electron interaction effects on transport through mesoscopic superconducting hybrid junctions
• Subgap tunneling via quantum-interference effect: insulators and charge density waves
• Toy Model for Large Non-Symmetric Random Matrices