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Chain of Majorana States from Superconducting Dirac Fermions at a Magnetic Domain Wall

2010/08/31 by Titus Neupert, Shigeki Onoda, Akira Furusaki · 4 citations
Materials Science · Physics and Astronomy · #Condensed matter physics #Dirac (video compression format) #Dirac fermion #Fermion #Graphene research and applications #MAJORANA #Majorana fermion #Physics #Quantum many-body systems #Quantum mechanics #Superconductivity #Topological Materials and Phenomena #cond-mat.mes-hall #cond-mat.supr-con

paper · pdf · doi:10.1103/physrevlett.105.206404

published as Phys. Rev. Lett. 105, 206404 (2010) · 4+ pages, 2 figures

openalex publication_date 2010/11/12 · arxiv created 2010/11/15 · arxiv updated 2010/11/16 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We study theoretically a strongly type-II s-wave superconducting state of two-dimensional Dirac fermions in proximity to a ferromagnet having in-plane magnetization. It is shown that a magnetic domain wall can host a chain of equally spaced vortices in the superconducting order parameter, each of which binds a Majorana-fermion state. The overlap integral of neighboring Majorana states is sensitive to the position of the chemical potential of the Dirac fermions. Thermal transport and scanning tunneling microscopy experiments to probe the Majorana fermions are discussed.

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