Nature of the Fulde-Ferrell-Larkin-Ovchinnikov phases at low temperature in 2 dimensions

TL;DR

This paper analytically explores the complex phase transitions of Fulde-Ferrell-Larkin-Ovchinnikov superfluid phases in two-dimensional isotropic superconductors at low temperatures, revealing a cascade of increasingly intricate order parameters.

Contribution

It provides a detailed analytical study of the low-temperature phase structure of FFLO states in 2D superconductors, highlighting a cascade of transitions to complex order parameters.

Findings

Cascade of transitions to more complex order parameters at low temperature

Analytical characterization of FFLO phases in 2D superconductors

Relevance for experimental observation of these phases

Abstract

We investigate, mostly analytically, the nature of the Fulde-Ferrell- Larkin-Ovchinnikov superfluid phases for an isotropic two-dimensional superconductor, which is relevant for the experimental observation of these phases. We show that there is, in the low temperature range, a cascade of transitions toward order parameters with ever increasing complexity.