MAGNETIC AND SUPERCONDUCTIVITY PROPERTIES OF RB3C60

The magnetic and superconductivity properties of rubidium-doped C-60 w ere studied. The temperature dependence of the irreversibility line H (T) as determined by SQUID magnetization measurements gave a power la w (n approximate to 2) scaling of the reduced relative irreversibility temperature with irreversibility field. Strong ESR signals were obser ved, and the influence of vortex induced line-width broadening was stu died. A coexistence of ESR signals and regular series of absorption li nes, presumably due to Josephson Junctions, was observed.