Magnetic penetration depth in the presence of a spin-density wave in multiband superconductors at zero temperature

2012/05/11 by Dushko Kuzmanovski, Maxim Vavilov, Maxim G. Vavilov
Materials Science · Physics and Astronomy · #Iron-based superconductors research #Physics of Superconductivity and Magnetism #Rare-earth and actinide compounds #cond-mat.supr-con

paper · pdf · doi:10.1088/0953-2048/25/8/084001

published as Supercond. Sci. Technol. 25 (2012) 084001 · 7 pages, 4 figures

arxiv created 2012/05/11 · openalex publication_date 2012/07/17 · arxiv updated 2012/07/19 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/30

Abstract

We present a theoretical description of the London penetration depth of a multiband superconductor in the case when both superconducting and spin-density wave orders coexist. We focus on clean systems and zero temperature to emphasize the effect of the two competing orders. Our calculation shows that the superfluid density closely follows the evolution of the superconducting order parameter as doping is increased, saturating to a BCS value in the pure superconducting state. Furthermore, we predict a strong anisotropic in-plane penetration depth induced by the spin-density wave order.

Citations

• Superfluid density and penetration depth in the iron pnictides
• The Puzzle of High Temperature Superconductivity in Layered Iron Pnictides and Chalcogenides
• Multiband magnetism and superconductivity in Fe-based compounds
• Momentum dependence and nodes of the superconducting gap in the iron pnictides
• Superconductivity and spin-density waves in multiband metals
• Local Measurement of the Superfluid Density in the Pnictide SuperconductorBa(Fe1−xCox)2As2across the Superconducting Dome