Unzipping flux lines from extended defects in type-II superconductors

Abstract

With magnetic force microscopy in mind, we study the unbinding transition of individual flux lines from extended defects like columnar pins and twin planes in type II superconductors. In the presence of point disorder, the transition is universal with an exponent which depends only on the dimensionality of the extended defect. We also consider the unbinding transition of a single vortex line from a twin plane occupied by other vortices. We show that the critical properties of this transition depend strongly on the Luttinger liquid parameter which describes the long distance physics of the two-dimensional flux line array.

arXiv comment5 pages, 4 figures

References in corpus (8)

• Elastic theory of flux lattices in presence of weak disorder
• Vortex Pinning and Non-Hermitian Quantum Mechanics
• Pulling Pinned Polymers and Unzipping DNA
• Single Molecule Statistics and the Polynucleotide Unzipping Transition
• Anomalous Fluctuations of Directed Polymers in Random Media
• Vortex Glass Phase and Universal Susceptibility Variations in Planar Array of Flux Lines
• Non-Hermitian Luttinger liquids and flux line pinning in planar superconductors
• Do Vortices Entangle?

Cited by in corpus (4)

• Braiding Majorana Fermions and Creating Quantum Logic Gates with Vortices on a Periodic Pinning Structure
• Viscous Decoupling Transitions for Individually Dragged Particles in Systems with Quenched Disorder
• Unzipping Vortices in Type-II Superconductors
• DNA unzipping and the unbinding of directed polymers in a random media