392 citations · 2.8k across the 76 of their papers we have counts for
5 papers · 1 filter
Engineering 1D topological phases on -wave superconductors
Isac Sahlberg, Alex Westström, Kim Pöyhönen +1
In this work, we study how, with the aid of impurity engineering, two-dimensional -wave superconductors can be employed as a platform for one-dimensional topological phases. We…
Topological states in engineered atomic lattices
Robert Drost, Teemu Ojanen, Ari Harju +1
Topological materials exhibit protected edge modes that have been proposed for applications in for example spintronics and quantum computation. While a number of such systems exist…
Skyrmion-induced subgap states in p-wave superconductors
Kim Pöyhönen, Alex Westström, Sergey S. Pershoguba +2
In s-wave systems, it has been theoretically shown that a ferromagnetic film hosting a skyrmion can induce a bound state embedded in the opposite-spin continuum. In this work, we c…
Topological state engineering by potential impurities on chiral superconductors
Vardan Kaladzhyan, Joel Röntynen, Pascal Simon +1
In this work we consider the influence of potential impurities deposited on top of two-dimensional chiral superconductors. As discovered recently, magnetic impurity lattices on an…
Topological superconductivity and anti-Shiba states in disordered chains of magnetic adatoms
Alex Westström, Kim Pöyhönen, Teemu Ojanen
Regular arrays of magnetic atoms on a superconductor provide a promising platform for topological superconductivity. In this work we study effects of disorder in these systems, foc…