β Scribed by A.V Samokhvalov
No coin nor oath required. For personal study only.
The magnetic field distribution, the magnetic flux, and the free energy of an Abrikosov vortex loop near a flat surface of type-II superconductors are calculated in the London approximation. The shape of such a vortex line is a semicircle of arbitrary radius. The interaction of the vortex half-ring and an external homogeneous magnetic field applied along the surface is studied. The magnitude of the energy barrier against the vortex expansion into superconductor is found. The possibilities of forming an equilibrium vortex line, determined by the structure of the applied magnetic field, by creating the expanding vortex loops near the surface of type-II superconductors, are discussed.
π SIMILAR VOLUMES
The vortex energy of type-II superconductors in mixed state is discussed based on the assumption that vortex can undergo quantum effect. The Hamiltonian of an isolated vortex of type-II superconductors in lower magnetic fields is calculated from the elasticity of vortex within the framework of weak