Magnetism in C60 Films Induced by Proton Irradiation
  It is shown that polycrystalline fullerene thin films on hydrogen passivated Si(111) substrates irradiated by 2 MeV protons displays ferromagnetic-like behavior at 5 K. At 300 K both the pristine and the irradiated film show diamagnetic behavior. Magnetization data in the temperature range 2 - 300 K, in 1 Tesla applied field, for the irradiated film shows much stronger temperature dependence compared to the pristine film. Possible origin of ferromagnetic-like signals in the irradiated films are discussed. 
S. Mathew, B. Satpati, B. Joseph and B. N. Dev (IOP, Bhubaneswar,   India) R. Nirmala and S. K. Malik (TIFR, Mumbai, India)