PERSISTENT CURRENT-INDUCED BY MAGNETIC-IMPURITIES

We calculate the average persistent current in a normal conducting, me soscopic ring in the diffusive regime. In the presence of magnetic imp urities, a contribution to the persistent current is identified, which is related to fluctuations in the electron spin density. Assuming a s pin-flip scattering rate which is comparable to the Thouless energy E- c and low temperature, this new contribution to the persistent current is of the order I similar to E-c(2)/(kT phi(0)), which is considerabl y larger than the persistent current induced by the electron-electron interaction.