A. Crisan, ON A MODIFIED KIM ANDERSON MODEL OF THE CURRENT-VOLTAGE CHARACTERISTICS OF HIGH-TEMPERATURE SUPERCONDUCTING CERAMICS, Journal of superconductivity, 7(4), 1994, pp. 687-691
In comparison with the ''classical'' Kim-Anderson model for the curren
t-voltage characteristics of type-II superconductors, another model wi
th a less sharp pinning potential is presented. In addition to the app
roximate solution, for currents close to the critical one, a complete
solution of this model is derived, which better fits the experimentall
y obtained current-voltage characteristics.