Modeling nonlinearity and hysteresis due to critical-state flux penetration in hard superconductors
arXiv:cond-mat/9905063
Abstract
The nonlinear surface impedance of a thin superconducting strip carrying a microwave current has been calculated numerically from first principles based upon flux penetration due to a current-induced critical state. The calculations approach analytic results in the appropriate limit. The technique is useful for design of passive superconducting microwave circuits.
4 pages, 7 PostScript figures, Submitted to IEEE Transactions on Applied Superconductivity. More details and related publications are available at http://sagar.physics.neu.edu/