Vortex correlations in a fully frustrated two-dimensional superconducting network

TL;DR

This study explores vortex arrangements in a fully frustrated 2D superconducting dice network, revealing a lack of ordered vortex states at specific frustrations, with correlations limited to a single lattice cell.

Contribution

It provides new experimental insights into vortex behavior in dice networks, contrasting with other geometries that show ordered states.

Findings

No ordered vortex state at f=1/2 in dice network

Vortex-vortex correlation length is approximately one lattice cell

Contrasts with other network geometries where order was observed

Abstract

We have investigated the vortex state in a superconducting dice network using the Bitter decoration technique at several magnetic frustrations f=1/2 and 1/3. In contrast to other regular network geometries where the existence of a commensurate state was previouly demonstrated, no ordered state was observed in the dice network at f=1/2 and the observed vortex-vortex correlation length is close to one lattice cell.