Magnetic flux structure and formfactor of SANS in a superconductor with multicomponent order parameter

✍ Scribed by A.S. Zeltser; Yu.G. Pashkevich; A.E. Filippov

• Publisher: Elsevier Science
• Year: 1999
• Tongue: English
• Weight: 495 KB
• Volume: 260
• Category: Article
• ISSN: 0375-9601
• DOI: 10.1016/s0375-9601(99)00485-5

✦ Synopsis

Possible observable consequences of a recently described scenario of vortex generation in superconductors with multicomponent order parameter are discussed. According to this scenario the vortices appear inside domain boundaries separating the phases with different realizations of the equilibrium order parameter. It is shown that, as a rule, solitary vortex has an anisotropic distribution of the current and magnetic field even in absence of anisotropy in gradient terms. The lattice formed by such vortices has symmetry lower than hexagonal or tetragonal ones. It is simulated with the help of brownian dynamics. Ordered structure manifests itself in the correlation function for magnetic field density and, as a result, in the Ž . positions, intensity and formfactor of the peaks of small angle neutron scattering SANS .