4 papers
Interactions of composite magnetic skyrmion-superconducting vortex pairs in ferromagnetic superconductors
Paul Leask, Calum Ross, Egor Babaev
We study composite topological excitations in ferromagnetic superconductors consisting of bound states of magnetic spin textures (skyrmions) and superconducting vortices. Using a G…
Multiple correlation lengths and type-1.5 superconductivity in superconductors due to hidden competition between irreducible representations of nonlocal pairing
Anton Talkachov, Paul Leask, Egor Babaev
A fundamental characteristic of a superconducting state is the coherence length . Multicomponent superconductors, particularly ones breaking multiple symmetries, are characteri…
Microscopic theory of strain-controlled split superconducting and time-reversal symmetry-breaking transitions in superconductor
Anton Talkachov, Egor Babaev
We study conditions of the appearance of superconducting states that spontaneously break time-reversal symmetry (BTRS) on a square lattice as a function o…
Ultrasound response to time-reversal symmetry breaking below the superconducting phase transition
Chris Halcrow, Paul Leask, Egor Babaev
Ultrasound attenuation is a powerful probe of symmetry-breaking phenomena in superconductors. In this work, we develop a framework to model the ultrasound response of multi-compone…