Pinning of Vortices and Linear and Nonlinear Ac Susceptibilities in High-Tc Superconductors

摘要: The flux-line lattice in type-II superconductors can be calculated from various phenomenological theories. Static properties like the energy of arbitrary vortex arrangements and nonlocal elasticity are discussed some consequences strong anisotropy layered structure high-temperature given. Vortex dynamics deals with moving flux lines, pinning, thermal depinning, creep, nonlinear linear complex resistivities. concept a demagnetization factor is discussed. Solutions Bean model geometries analytic expressions for ac susceptibilities A numerical method presented by which magnetic response computed any geometry. This then applied to thin thick perpendicular field geometric barrier penetration.