Probing the chirality of one-dimensional Majorana edge states around a two-dimensional nanoflake in a superconductor
Andrzej Ptok, David J. Alspaugh, Szczepan Głodzik, Aksel Kobiałka, Andrzej M. Oleś, Pascal Simon, Przemysław Piekarz
DOI 10.1103/PhysRevB.102.245405 · Physical Review B
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
The interplay between superconductivity, magnetic field, and spin-orbit coupling can lead to the realization of nontrivial topological phases. Recent experiments have found signatures of such phases in magnetic nanoflakes formed by nanostructures coupled to a superconducting substrate. These heterostructures comprise a topologically nontrivial region surrounded by a trivial one due to the finite magnetic exchange field induced by the magnetic nanoflake. The analysis of the topological phase diagram of such a system shows that a similar phase separation occurs by tuning the chemical potential of the nanoflake. In this paper, we study such a possibility in detail, analyzing the spatial extent of the edge modes circulating around the nanoflake and discussing some practical implementations. We also show how the chirality of Majorana edge states can be probed using scanning tunneling spectroscopy with a double-tip setup.
Similar papers
Probing the chirality of 1D Majorana edge states around a 2D nanoflake in a superconductor
similarity 0.94Andrzej Ptok et al. · 2020 · arXiv:2008.11807
Source status unknown — claims are unverified
Vertical optical transitions of helical Majorana edge modes in topological superconductors
similarity 0.91Han Bi & James Jun He
Source status unknown — claims are unverified
Topological phase transitions and a two-dimensional Weyl superconductor in a half-metal/superconductor heterostructure
similarity 0.91Lei Hao & C. S. Ting
Source status unknown — claims are unverified
Multiple Majorana edge modes in magnetic topological insulator–superconductor heterostructures
similarity 0.90Qingming Li et al.
Source status unknown — claims are unverified
Revealing superconducting chiral edge modes via resistance distributions
similarity 0.90Linghao Huang et al.
Source status unknown — claims are unverified
Topological superconducting phase and Majorana fermions in half-metal/superconductor heterostructures
similarity 0.90Suk Bum Chung et al.
Source status unknown — claims are unverified