Majorana Zero Modes in Ferromagnetic Wires without Spin-Orbit Coupling
arXiv:2111.15260 · doi:10.3390/condmat6040044
Abstract
We present a novel controllable platform for engineering Majorana zero modes. The platform consists of a ferromagnetic metallic wire placed among conventional superconductors, which are in proximity to ferromagnetic insulators. We demonstrate that Majorana zero modes emerge localised at the edges of the ferromagnetic wire, due to the interplay of the applied supercurrents and the induced by proximity exchange fields with conventional superconductivity. Our mechanism does not rely on the pairing of helical fermions by combining conventional superconductivity with spin-orbit coupling, but rather exploits the misalignment between the magnetization of the ferromagnetic insulators and that of the ferromagnetic wire.
References in corpus (15)
- Non-Abelian Anyons and Topological Quantum Computation
- Superconducting proximity effect and Majorana fermions at the surface of a topological insulator
- Signatures of Majorana fermions in hybrid superconductor-semiconductor nanowire devices
- Quantum Computing
- Classification of topological insulators and superconductors in three spatial dimensions
- Observation of Majorana Fermions in Ferromagnetic Atomic Chains on a Superconductor
- Topological Phases of Noncentrosymmetric Superconductors: Edge States, Majorana Fermions, and the Non-Abelian Statistics
- Observation of a Majorana zero mode in a topologically protected edge channel
- Topological Superconductivity induced by Ferromagnetic Metal Chains
- Strong localization of Majorana end states in chains of magnetic adatoms
- Topological Yu-Shiba-Rusinov chain from spin-orbit coupling
- Evidence of topological Shiba bands in artificial spin chains on superconductors
- Majorana Fermions in Chiral Topological Ferromagnetic Nanowires
- Revealing the magnetic proximity effect in EuS/Al bilayers through superconducting tunneling spectroscopy
- Superconductivity in the surface state of noble metal gold and its Fermi level tuning by EuS dielectric