✦ LIBER ✦

Spin—lattice relaxation processes in photo-excited triplet states through a rotation of the spin axes on thermal excitation

✍ Scribed by P.J.F. Verbeek; A.I.M. Dicker; J. Schmidt

Publisher: Elsevier Science
Year: 1978
Tongue: English
Weight: 544 KB
Volume: 56
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(78)89047-2

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✦ Synopsis

We have observed a temperature dependence of the direction of the principal axes of the zero-field splitting for the triplet state of naphthalene in durene. The effect is caused by thermal excitation to a nearby local phonon state, where the spin itYes are rotated with respect to those in the lowest triplet state. Wi'JI the help of a simple model we can give a satisfactory explanation of the spin-lattice relaxation process in the lowest triplet state as a result of the thermal eucitation to the low lying phonon state.

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