| In this thesis,we study the structure of compound vortex in the two-energy-gap superconductor based on Ginzburg-Lnadau theory.In the first chapter,we reviewed the history of the development of superconductor,and briefly introduced the London theory, Ginzburg-Landau phenomenological theory,BCS theory of micro-superconductivity which play an important role in promoting development of superconducting.We discussed the typeâ…¡superconductor the vortex basic property.In the second chapter,we introduced detailed the newly discovered two-energy-gap superconductor magnesium diboride from normal state to superconducting state,we calculate the two-energy-gap superconductor in the compound vortex structure based on two component of the ginzburg-Landau theory.Inclouding the superconduting current of compound vortex and structure distribution of vortex magnetic field.Finally,We calculated the energy of such compound vortex and vortex interaction. |
