Anomalous paramagnetic relaxation of cationic radicals in polycrystalline fullerites

G. G. Fedoruk; V. F. Stelmakh

doi:10.1117/12.375320

14 January 2000 Anomalous paramagnetic relaxation of cationic radicals in polycrystalline fullerites

G. G. Fedoruk, V. F. Stelmakh

Proceedings Volume 4061, IRQO '99: Quantum Optics; (2000) https://doi.org/10.1117/12.375320
Event: Eighth International Readings on Quantum Optics: IRQO '99, 1999, Kazan, Russian Federation

Abstract

The spin-lattice relaxation kinetics of radical cation C₆₀⁺ in polycrystalline C₆₀ has been studied at room temperature by two-pulse delayed nutation and nutational echo methods. It has been found that the kinetics is well described by a function exp(-a(root)t), as expected when the distribution of relaxation time of paramagnetic centers takes place. Our results suggest that oxygen molecules cause the observed kinetics. These molecules play role of fast-relaxing impurities and accelerate spin-lattice molecules cause the observed kinetics. These molecules play role of fast-relaxing impurities and accelerate spin-lattice relaxation of C₆₀⁺ radicals. The earlier obtained peculiarities of C₆₀⁺ radical relaxation in fullerites are discussed.

Citation Download Citation

G. G. Fedoruk and V. F. Stelmakh "Anomalous paramagnetic relaxation of cationic radicals in polycrystalline fullerites", Proc. SPIE 4061, IRQO '99: Quantum Optics, (14 January 2000); https://doi.org/10.1117/12.375320

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