Zur Konzentrationsabhängigkeit der Elektronenspin-Relaxationszeiten von Diphenyl-Picryl-Hydrazyl in fester Phase |
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| Authors: | G Höcherl H C Wolf |
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| Institution: | 1. 3. Physikalischen Institut der Technischen Hochschule Stuttgart, Germany
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| Abstract: | The influence of exchange and dipol interaction on the EPR-relaxation timesT 1 andT 2 of DPPH has been measured in theX-band between 295 and 2°K. The spinconcentration has been varied between 1.5·1021 spins/cm3 (single crystals) and 1.5·1018 spins/cm3 (solid solution in polystyrene). The EPR absorption was saturated stationarily. This gave the productT 1 T 2 from the saturation curve and the timeT 2 from saturation broadening of the absorption spectrum. |
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