%0 Journal Article
%A Legendre, Julian
%A Zsurka, Eduárd
%A Di Miceli, Daniele
%A Serra, Llorenç
%A Moors, Kristof
%A Schmidt, Thomas L.
%T Topological properties of finite-size heterostructures of magnetic topological insulators and superconductors
%J Physical review / B
%V 110
%N 7
%@ 2469-9950
%C Woodbury, NY
%I Inst.
%M FZJ-2024-05737
%P 075426
%D 2024
%X Heterostructures of magnetic topological insulators (MTIs) and superconductors (SCs) in two-dimensional (2D) slab and one-dimensional (1D) nanoribbon geometries have been predicted to host, respectively, chiral Majorana edge states (CMESs) and Majorana bound states (MBSs). We study the topological properties of such MTI/SC heterostructures upon variation of the geometry from wide slabs to quasi-1D nanoribbon systems and as a function of the chemical potential, the magnetic doping, and the induced superconducting pairing potential. To do so, we construct effective symmetry-constrained low-energy Hamiltonians accounting for the real-space confinement. For a nanoribbon geometry with finite width and length, we observe different phases characterized by CMESs, MBSs, as well as coexisting CMESs and MBSs, as the chemical potential, the magnetic doping, and/or the width are varied.
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:001300987000004
%R 10.1103/PhysRevB.110.075426
%U https://juser.fz-juelich.de/record/1031557