title: Glass Transitions in Monodisperse Cluster-Forming Ensembles: Vortex Matter in Type-1.5 Superconductors.
abstract: At low enough temperatures and high densities, the equilibrium configuration of an ensemble of ultrasoft particles is a self-assembled, ordered, cluster crystal. In the present Letter, we explore the out-of-equilibrium dynamics for a two-dimensional realization, which is relevant to superconducting materials with multiscale intervortex forces. We find that, for small temperatures following a quench, the suppression of the thermally activated particle hopping hinders the ordering. This results in a glass transition for a monodispersed ensemble, for which we derive a microscopic explanation in terms of an "effective polydispersity" induced by multiscale interactions. This demonstrates that a vortex glass can form in clean systems of thin films of "type-1.5" superconductors. An additional setup to study this physics can be layered superconducting systems, where the shape of the effective vortex-vortex interactions can be engineered.
authors.affiliation: icFRC, IPCMS (UMR 7504), ISIS (UMR 7006), Université de Strasbourg and CNRS, 67000 Strasbourg, France.
authors.forename: Rogelio
authors.initials: R
authors.lastname: Díaz-Méndez
authors.affiliation: icFRC, IPCMS (UMR 7504), ISIS (UMR 7006), Université de Strasbourg and CNRS, 67000 Strasbourg, France.
authors.forename: Fabio
authors.initials: F
authors.lastname: Mezzacapo
authors.affiliation: IQOQI and Institute for Theoretical Physics, University of Innsbruck, 6020 Innsbruck, Austria.
authors.forename: Wolfgang
authors.initials: W
authors.lastname: Lechner
authors.affiliation: National Institute for Theoretical Physics (NITheP), Stellenbosch 7600, South Africa.|Institute of Theoretical Physics, Stellenbosch University, Stellenbosch 7600, South Africa.
authors.forename: Fabio
authors.initials: F
authors.lastname: Cinti
authors.affiliation: Department of Theoretical Physics and Center for Quantum Materials, KTH-Royal Institute of Technology, Stockholm SE-10691, Sweden.
authors.forename: Egor
authors.initials: E
authors.lastname: Babaev
authors.affiliation: icFRC, IPCMS (UMR 7504), ISIS (UMR 7006), Université de Strasbourg and CNRS, 67000 Strasbourg, France.
authors.forename: Guido
authors.initials: G
authors.lastname: Pupillo