Author/Authors :
T.L. Makarova، نويسنده , , K.-H. Han، نويسنده , , P. Esquinazi، نويسنده , , R.R. da Silva، نويسنده , , Y. Kopelevich، نويسنده , , I.B. Zakharova، نويسنده , , G. A. Kourouklis and B. Sundqvist ، نويسنده ,
Abstract :
The phototransformation of bulk C60 and laser- and electron-beam treatment of C60 films in air changes their magnetic properties. Nonlinear magnetization is observed only for samples irradiated in the presence of oxygen, while, in the case of pressure-polymerized C60, oxygen adversely affects the magnetic properties. The contrasting roles of oxygen in these processes are discussed. Magnetic force microscopy shows that laser- and electron-beam irradiation of fullerene films produces magnetic images which are highly correlated with the topographic images.
