Abstract
The spin-lattice relaxation (SLR) of photoexcited triplet states in fullerene C60 crystal is investigated at low temperatures and high magnetic fields. The mixing of translatjional motions of the molecule and vibrational motions of the nuclei (TVM Relaxation mechanism) is chosen as the majo phenomenon, leading to the coupling of spin system with acoustic vibrations. The general expressions of SLR rates for the direct one-phonon processes are obtained using the atom-atom potentials and ab initio molecular orbitals (MO) methods. The influence of dynaijnic Jahn-Teller (JT) effect in a molecule C60 on the SLR rates is analyzed. A comparison of calculated values for SLR time with available experimental data is carried out.
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