Metastability and Transient Effects in Vortex Matter Near a Disorder Driven Transition

TL;DR

This paper investigates metastable and transient phenomena in vortex matter near a disorder-driven transition, revealing history effects, supercooling, superheating, and reordering dynamics in a 3D vortex simulation.

Contribution

It provides new insights into the metastability and transient behaviors of vortex phases near a first-order disorder transition in a 3D model.

Findings

Transient and history effects are prominent near the transition.

Supercooling and superheating occur between ordered and disordered phases.

Reordering involves formation of moving channels of the ordered phase.

Abstract

We examine metastable and transient effects both above and below the first-order disorder driven decoupling line in a 3D simulation of magnetically interacting pancake vortices. We observe pronounced transient and history effects as well as supercooling and superheating between the ordered and disordered phases. In the disordered supercooled state as a function of DC driving, reordering occurs through the formation of growing moving channels of the ordered phase. We find that hysteresis in V(I) is strongly dependent on the proximity to the decoupling transition line.