2016/01/31 by Julien Garaud, М. А. Силаев, Mihail Silaev +1 · 31 citations
Materials Science · Mathematics · Physics and Astronomy · #Algorithm #Combinatorics #Component (thermodynamics) #Computer science #Condensed matter physics #Context (archaeology) #Focus (optics) #Geology #Iron-based superconductors research #Mathematics #Pairing #Physics #Physics of Superconductivity and Magnetism #Quantum mechanics #State (computer science) #Statistical physics #Superconductivity #Superconductivity in MgB2 and Alloys #Topology (electrical circuits) #cond-mat.supr-con
paper · pdf · doi:10.1016/j.physc.2016.07.010
published in Physica C Superconductivity 533, 63-73 (Elsevier BV) · Prepared for the proceedings of Vortex IX conference in Rhodos Sept. 2015; Replaced with a version in press in Physica C ; 15 pages, 6 figures
openalex created_date 2016/06/24 · openalex publication_date 2016/07/14 · arxiv created 2016/09/14 · arxiv updated 2017/02/20 · openalex updated_date 2026/08/05
Starting with the generic Ginzburg-Landau expansion from a microscopic N-band model, we focus on the case of a 3-band model which was suggested to be relevant to describe some iron-based superconductors. This can lead to the so-called s+is superconducting state that breaks time-reversal symmetry due to the competition between different pairing channels. Of particular interest in that context, is the case of an interband dominated pairing with repulsion between different bands. For that case we consider in detail the relevant reduced two-component Ginzburg-Landau theory. We provide detailed analysis of the ground state, length scales and topological properties of that model.