Author/Authors :
Chauvet، نويسنده , , O. and Forro، نويسنده , , L. and Cooper، نويسنده , , J.R. and Mihaly، نويسنده , , G. and Janossy، نويسنده , , A.، نويسنده ,
Abstract :
The conduction electron spin resonance (CESR) of Rb3C60 has been observed, and the spin susceptibility is found to be XS=(12.4±4) × 10−4 emu/mole, in agreement with the static measurements. The CESR linewidth of Rb3C60 is 600G at room temperature. Formerly the ESR of Rb1C60 has been erroneously assigned to Rb3C60. It has a width of 6.5G at 300K and shows the polymer to monomer transition at 400K. Below this temperature Rb1C60 is a quasi-1D metal with a transition to a spin density wave ground state at 50K.