Microscopic theory of type-1.5 superconductivity in multiband systems
Mihail Silaev, Egor Babaev

TL;DR
This paper develops a microscopic theory for type-1.5 superconductivity in multiband systems, focusing on length scales, vortex structures, and the unique mixed type of superconductivity.
Contribution
It introduces a self-consistent two-band Eilenberger formalism to analyze the microscopic properties of type-1.5 superconductors, advancing understanding of their vortex behavior.
Findings
Identification of characteristic length scales in two-band systems
Description of vortex structures specific to type-1.5 superconductivity
Establishment of a microscopic framework for multiband superconductors
Abstract
We report a self-consistent microscopic theory of characteristic length scales, vortex structure and type-1.5 superconducting state in two-band systems using two-band Eilenberger formalism.
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