β Scribed by Rongchao Ma; Yuefei Ma; Yuping Sun
No coin nor oath required. For personal study only.
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 collective pinning theory. The results indicate that the vortex can be described using the eigenvalue of a harmonic oscillator and the eigenvalue of the vortex energy can be reduced by the action of Lorentz force of the current acting on the vortex. The quantum effects of vortices in higher magnetic fields are also studied and two particular directions of the dispersion models of the two-dimension triangular vortex lattice are given.
π SIMILAR VOLUMES
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