Theory for transport through a single magnetic molecule:: Endohedral N@C60 -: art. no. 155403

We consider transport through a single N@C-60 molecule, weakly coupled to metallic leads. Employing a density-matrix formalism we derive rate equations for the occupation probabilities of many-particle states of the molecule. We calculate the current-voltage characteristics and the differential conductance for N@C-60 in a break junction. Our results reveal Coulomb-blockade behavior as well as a fine structure of the Coulomb-blockade peaks due to the exchange coupling of the C-60 spin to the spin of the encapsulated nitrogen atom.