2010/07/06 by M. Zehetmayer, Martin Zehetmayer, H.W. Weber +1
Materials Science · Physics and Astronomy · #Algorithm #Anisotropy #Computer science #Condensed matter physics #Electronic band structure #Iron-based superconductors research #Isotropy #Magnetic field #Magnetization #Physics #Physics of Superconductivity and Magnetism #Quantum mechanics #State (computer science) #Superconductivity #Superconductivity in MgB2 and Alloys #cond-mat.supr-con
paper · pdf · doi:10.1103/physrevb.82.014524
published as Phys. Rev. B 82, 014524 (2010) · 5 pages, 2 figures
arxiv created 2010/07/06 · openalex publication_date 2010/07/16 · arxiv updated 2010/07/21 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We report on measurements and a detailed analysis of the reversible magnetization of superconducting NbSe2 single crystals. By comparing the experimental data with Ginzburg Landau theory we show that superconductivity in NbSe2 cannot be explained by an anisotropic single-band but by a multiband scenario. Applying a simple two-band model reveals the basic mixed-state parameters, which are quite different in the two bands. We identify a strongly anisotropic band that determines the properties at high magnetic fields and a second almost isotropic band that dominates at low fields. Our method is well suited for distinguishing anisotropic single-band from multiband superconductivity in various materials.