Direct Observation of `Soliton-Like' Spin Density Distribution in UndopedCis-Rich (CH)xUsing ENDOR
- 15 October 1985
- journal article
- research article
- Published by Physical Society of Japan in Journal of the Physics Society Japan
- Vol. 54 (10) , 3956-3965
- https://doi.org/10.1143/jpsj.54.3956
Abstract
Electron nuclear double resonance (ENDOR) measurements were performed on stretch oriented undoped cis -rich (CH) x at 4 K. The observed ENDOR line shape had spectral turning points and showed a clear anisotropy. The presence of the spin density which is comparable with the prediction of the soliton theory was directly confirmed from the maximum ENDOR frequency. The analysis of the observed line shape using a spectrum simulation method suggested that the spin density is of the form similar as those predicted by the soliton theory for finite on-site Coulomb energy. Especially the spectral turning points observed when the external magnetic field was parallel to the stretch direction of the sample were directly correlated to the existence of the negative spin density predicted by the theory.Keywords
This publication has 14 references indexed in Scilit:
- Direct observation of Coulomb correlation effects in polyacetylenePhysical Review B, 1985
- Direct observation of ‘soliton-like’ spin density distribution in undoped cis-rich (CH)x by ENDOR at 4°KSolid State Communications, 1984
- Neutral solitons in polyacetylene: Implications of the ENDOR resultsSolid State Communications, 1983
- Electron-Nuclear Double-Resonance Determination of theandHyperfine Tensors for PolyacetylenePhysical Review Letters, 1983
- π-electron character observed through the anisotropy in the ENDOR spectra of undoped (CH)xSolid State Communications, 1982
- Magnetic resonance properties of polyacetyleneMolecular Crystals and Liquid Crystals, 1982
- Bond alternation, on-site Coulomb correlations, and solitons in polyacetylenePhysical Review B, 1981
- Soliton excitations in polyacetylenePhysical Review B, 1980
- Preparation and morphology of as-prepared and highly stretch-aligned polyacetyleneSynthetic Metals, 1980
- Solitons in PolyacetylenePhysical Review Letters, 1979