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Organic semiconductors

What makes the spin relax?

Spin relaxation in organic materials is expected to be slow because of weak spin–orbit coupling. The effects of deuteration and coherent spin excitation show that the spin-relaxation time is actually limited by hyperfine fields.

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Figure 1: A section of the π-conjugated polymer used in the deuteration experiment reported by Nguyen et al.2.

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Bobbert, P. What makes the spin relax?. Nature Mater 9, 288–290 (2010). https://doi.org/10.1038/nmat2718

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