Seminar by Felix von Oppen – University of Copenhagen

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Seminar by Felix von Oppen

Magnetic adatoms on superconductors - a new venue for Majorana bound states?

In a recent experiment, Nadj-Perge et al. provide possible evidence for
Majorana bound states in chains of magnetic adatoms on a conventional
superconductors. The formation of topological superconductivity in this system relies
on ferromagnetic order of the magnetic moments and spin-orbit coupling of the
substrate superconductor.
In this talk, I will discuss a physical picture underlying these experiments which starts
with the physics of individual magnetic adatoms, including a possible explanation for
the unexpectedly strong localization of the observed end states.