J.V. Harzer, B. Hillebrands, et al.
Journal of Magnetism and Magnetic Materials
We report the direct observation of electron-electron correlation effects in polyacetylene. Pristine 99% enriched13 cis-rich polyacetylene has been investigated by electron nuclear-nuclear triple (double-ENDOR) resonance spectroscopy. We observe an induced negative spin polarization of -/+-0.33. Negative spin densities arise from spin exchange mechanisms which can only result from Coulomb effects. Theoretical analysis of experimental results within the soliton framework yields 3 eV for the effective on-site Coulomb repulsion. © 1985 The American Physical Society.
J.V. Harzer, B. Hillebrands, et al.
Journal of Magnetism and Magnetic Materials
T.N. Morgan
Semiconductor Science and Technology
Revanth Kodoru, Atanu Saha, et al.
arXiv
Ranulfo Allen, John Baglin, et al.
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