57 citations · 162 across the 10 of their papers we have counts for
10 papers
Observation of superconducting vortices carrying a temperature-dependent fraction of the flux quantum
Yusuke Iguchi, Ruby Shi, Kunihiro Kihou +4
The magnetic response is a state-defining property of superconductors. The magnetic flux penetrates type-II bulk superconductors by forming quantum vortices when the enclosed magne…
Demonstration of skyrmions in three-band superconductors by self-consistent solutions to a Bogoliubov-de Gennes model
Andrea Benfenati, Mats Barkman, Egor Babaev
Topological defects, such as magnetic-flux-carrying quantum vortices determine the magnetic response of superconductors and hence are of fundamental importance. Here, we show that…
Elevated critical temperature at BCS superconductor-band insulator interfaces
Mats Barkman, Albert Samoilenka, Andrea Benfenati +1
We consider the interface between a Bardeen-Cooper-Schrieffer superconductor and non-superconducting band insulator. We show that under certain conditions, such interfaces can have…
Vortex nucleation barriers and stable fractional vortices near boundaries in multicomponent superconductors
Andrea Maiani, Andrea Benfenati, Egor Babaev
The magnetization process of a superconductor is determined by the potential barrier for vortex nucleation and escape. In multicomponent superconductors, fractional vortices with a…
Spontaneous edge corner currents in superconductors and time reversal symmetry breaking surface states
Andrea Benfenati, Egor Babaev
We present a study of the basic microscopic model of an -wave superconductor with frustrated interband interaction. When frustration is strong, such an interaction gives raise t…
Boundary effects in two-band superconductors
Andrea Benfenati, Albert Samoilenka, Egor Babaev
We present a microscopic study of the behavior of the order parameters near boundaries of a two-band superconducting material, described by the standard tight-binding Bardeen-Coope…
Reply to the Comment on "Surface Pair-Density-Wave Superconducting and Superfluid States"
Mats Barkman, Andrea Benfenati, Albert Samoilenka +1
The recent Comment by Vorontsov [arXiv:2007.13696] claims that surface pair-density-wave superconductivity with critical temperature higher than the bulk FFLO critical temperature…
Vortex nucleation barrier in superconductors beyond the Bean-Livingston approximation: A numerical approach for the sphaleron problem in a gauge theory
Andrea Benfenati, Andrea Maiani, Filipp N. Rybakov +1
The knowledge of vortex nucleation barriers is crucial for applications of superconductors, such as single-photon detectors and superconductor-based qubits. Contrarily to the probl…
Magnetic signatures of domain walls in and superconductors: observability and what that can tell us about the superconducting order parameter
Andrea Benfenati, Mats Barkman, Thomas Winyard +3
One of the defining features of spontaneously broken time-reversal symmetry (BTRS) is the existence of domain walls, the detection of which would be strong evidence for such system…
Pair-density-wave superconductivity of faces, edges and vertices in systems with imbalanced fermions
Albert Samoilenka, Mats Barkman, Andrea Benfenati +1
We describe boundary effects in superconducting systems with Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) superconducting instability, using Bogoliubov-de-Gennes and Ginzburg-Landau (GL…