Abstract
Properties of kinetic inductances of superconducting fine filaments and thin films are reviewed and discussed. When the thickness of films or diameter of fine filaments are smaller than magnetic field penetration depth of superconductors, higher field is required for vortex (flux quantum) penetration into fine filament superconductors. In such cases, effect of kinetic inductance can be observed. The possibility of energy storage systems by kinetic inductance are discussed and the maximum storage energy density of kinetic inductances is estimated to be two orders smaller than that of electro-magnetic inductances. But the energy and inductance per unit volume of kinetic inductances are estimated to be several orders larger than that of electro-magnetic inductances. The applications of kinetic inductances are also discussed and integrated kinetic inductance for electronics and small scale energy storage systems are proposed. The properties of effective flux in kinetic inductance are also discussed. It is pointed out that the effect of kinetic inductance may become important in fine filament composite superconductors and high Tc superconducting thin films.
