Polymorphism of fulleride ions in A1C60 (A=K, Rb, Cs) salts

S Pekker, László Gránásy1,2, G Oszlányi, G Bortel, G Faigel, M Tegze, O Chauvet, L Forró, PW Stephens, A Jánossy

1Institute for Solid State Physics and Optics, Wigner Research Centre for Physics, P.O. Box 49, Budapest H-1525, Hungary
2BCAST, Brunel University, Uxbridge, Middlesex, UB8 3PH, United Kingdom