28 October 2014 Molecular magneto-optics
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Abstract
We report on recent studies of magneto-optic properties and Faraday rotation of polythiophenes and macrocycles of 3- alkylthiophenes. The hypothesis of the existence of persistent currents, analogous to the persistent currents in mesoscopic metal structures, is forwarded as a relevant mechanism basic to the large Faraday rotation in conjugated polymers as well as for the ferromagnetic transition in these polymers at cryogenic temperatures. Macrocycles of alkylthiophenes are presented and discussed as fundamental structures to investigate persistent currents in nanoscopic organic materials.
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Palash Gangopadhyay, Palash Gangopadhyay, Guy Koeckelberghs, Guy Koeckelberghs, André Persoons, André Persoons, } "Molecular magneto-optics", Proc. SPIE 9181, Light Manipulating Organic Materials and Devices, 91810L (28 October 2014); doi: 10.1117/12.2061841; https://doi.org/10.1117/12.2061841
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