Majorana fermions in magnetic chains
Majorana fermions have recently garnered a great attention outside the field of particle
physics, in condensed matter physics. In contrast to their particle physics counterparts …
physics, in condensed matter physics. In contrast to their particle physics counterparts …
Spin-orbit coupling induced splitting of Yu-Shiba-Rusinov states in antiferromagnetic dimers
Magnetic atoms coupled to the Cooper pairs of a superconductor induce Yu-Shiba-Rusinov
states (in short Shiba states). In the presence of sufficiently strong spin-orbit coupling, the …
states (in short Shiba states). In the presence of sufficiently strong spin-orbit coupling, the …
Topological superconductivity and high Chern numbers in 2D ferromagnetic Shiba lattices
J Röntynen, T Ojanen - Physical review letters, 2015 - APS
Inspired by the recent experimental observation of topological superconductivity in
ferromagnetic chains, we consider a dilute 2D lattice of magnetic atoms deposited on top of …
ferromagnetic chains, we consider a dilute 2D lattice of magnetic atoms deposited on top of …
Two-dimensional chiral topological superconductivity in Shiba lattices
The chiral p-wave superconductor is the archetypal example of a state of matter that
supports non-Abelian anyons, a highly desired type of exotic quasiparticle. With this, it is …
supports non-Abelian anyons, a highly desired type of exotic quasiparticle. With this, it is …
Strong localization of Majorana end states in chains of magnetic adatoms
A recent experiment [Nadj-Perge et al, Science 346, 602 (2014)] gives possible evidence for
Majorana bound states in chains of magnetic adatoms placed on a superconductor. While …
Majorana bound states in chains of magnetic adatoms placed on a superconductor. While …
Tuning interactions between spins in a superconductor
Novel many-body and topological electronic phases can be created in assemblies of
interacting spins coupled to a superconductor, such as one-dimensional topological …
interacting spins coupled to a superconductor, such as one-dimensional topological …
Conductance of a proximitized nanowire in the Coulomb blockade regime
We identify the leading processes of electron transport across finite-length segments of
proximitized nanowires and build a quantitative theory of their two-terminal conductance. In …
proximitized nanowires and build a quantitative theory of their two-terminal conductance. In …
Majorana modes in emergent-wire phases of helical and cycloidal magnet-superconductor hybrids
Noncollinear magnetism opens exciting possibilities to generate topological
superconductivity. Here, we focus on helical and cycloidal magnetic textures in magnet …
superconductivity. Here, we focus on helical and cycloidal magnetic textures in magnet …
Topological superconductivity in Fibonacci quasicrystals
We investigate the properties of a Fibonacci quasicrystal (QC) arrangement of a one-
dimensional topological superconductor, such as a magnetic atom chain deposited on a …
dimensional topological superconductor, such as a magnetic atom chain deposited on a …
Self-organized topological superconductivity in a Yu-Shiba-Rusinov chain
We study a chain of magnetic moments exchange coupled to a conventional three-
dimensional superconductor. In the normal state the chain orders into a collinear …
dimensional superconductor. In the normal state the chain orders into a collinear …