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- W2081032711 abstract "We report experimental and theoretical studies of spin dynamic process in the quasi-one-dimensional chlorine- bridged platinum complex, [Pt<SUP>II</SUP>(en)2][Pt<SUP>IV</SUP>(en)<SUB>2</SUB>Cl<SUB>2</SUB>](ClO<SUB>4</SUB>)<SUB>4</SUB>, where en equals ethylenediamine, C<SUB>2</SUB>N<SUB>2</SUB>H<SUB>8</SUB>. The process manifests itself in collapsing of the hyperfine and superhyperfine structures in the electron spin resonance spectrum and non-statistical distribution of spectral weight of the Pt isotopes. More surprisingly, it is activated only at temperatures below 6 K. We interpret the phenomenon in terms of quantum tunneling of the electronic spin in a strong electron-electron and electron-phonon coupling regime. This is modeled using a non-adiabatic many-body approach, in which polarons and solitons represent local spin-Peierls regions in a strongly disproportional charge- density-wave background and display intriguing spin-charge separation in the form of pinned charge and tunneling spin fluctuations." @default.
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- W2081032711 date "1997-12-01" @default.
- W2081032711 modified "2023-09-23" @default.
- W2081032711 title "Quantum spin fluctuations in quasi-one-dimensional chlorine-bridged platinum complexes" @default.
- W2081032711 doi "https://doi.org/10.1117/12.279272" @default.
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