The Suprafroth (Superconducting Froth)

TL;DR

This paper introduces the suprafroth, a novel superconducting froth structure with superconducting boundaries and normal interior, demonstrating that topological laws apply and linking magnetic properties to its structure, offering a new model for complex froth physics.

Contribution

It presents the first superconducting froth system, showing topological laws hold and establishing a connection between magnetic moment and structure.

Findings

Topological laws like von Neumann and Lewis apply to suprafroth.

Magnetic moment can be directly related to the suprafroth structure.

Suprafroth serves as a new model for studying complex two-dimensional froths.

Abstract

The structure and dynamics of froths have been subjects of intense interest due to the desire to understand the behaviour of complex systems where topological intricacy prohibits exact evaluation of the ground state. The dynamics of a traditional froth involves drainage and drying in the cell boundaries, thus it is irreversible. We report a new member to the froths family: suprafroth, in which the cell boundaries are superconducting and the cell interior is normal phase. Despite very different microscopic origin, topological analysis of the structure of the suprafroth shows that statistical von Neumann and Lewis laws apply. Furthermore, for the first time in the analysis of froths there is a global measurable property, the magnetic moment, which can be directly related to the suprafroth structure. We propose that this suprafroth is a new, model system for the analysis of the complex physics of two-dimensional froths.