Chemical Structure from Scientific Research

Schematic of the photoexcited dipole dynamics, where the excited state is initially polarized along the PNR short axis and, on sub-1-ps timescales, relaxes to a dipole polarized along the long axis with significant density along the ribbon edge. Here the excitation is coupled to a symmetry-forbidden edge phonon mode, and it is at this edge where the magnetism is probably present. FFT, fast Fourier transform; Rel., relative. Scale bar, 500 nm.

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