Abstract
The temperature dependence of the spin-lattice relaxation time of triplet-excited impurity centers of a C60 fullerene crystal is investigated within the framework of the spin-phonon coupling mechanism which arises as a result of the admixture of rotational to translational motions of the molecules due to acoustic lattice vibrations. General expressions are obtained for the transition probabilities for the direct single-phonon and Raman two-phonon processes. The method of atom-atom potentials is used to carry out a concrete calculation of the spin-lattice relaxation time for an isotopic impurity in a C60 crystal.
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Fiz. Tverd. Tela (St. Petersburg) 39, 1699–1702 (September 1997)
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Prilutskii, Y.I. Temperature dependence of the spin-lattice relaxation time in local triplet-excited states of a doped C60 fullerene crystal. Phys. Solid State 39, 1518–1521 (1997). https://doi.org/10.1134/1.1130110
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DOI: https://doi.org/10.1134/1.1130110