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- W2023393987 abstract "We propose a Su-Schrieffer-Heeger type electron-phonon model for buckminsterfullerenes: C60 and C70. The model is solved by a numerical iteration method with applying the adiabatic approximation to phonons. When the system (C60 or C70) is doped with one or two electrons (or holes), the additional charges accumulate almost along an equatorial line of the molecule. The dimerization becomes weaker almost along the same line. Two energy levels intrude largely in the gap; one is the occupied state and the other is the empty state. The intrusion is larger in C70 than in C60. These are “polarons” in doped buckminsterfullerenes. It is also found that C60 and C70 are related mutually with respect to electronical structures as well as lattice geometries. We also calculate optical properties of C60. In optical absorption of the doped C60, there is a new peak at the lower energy than those of the intergap transition peaks. The third harmonic generation in low frequencies agrees with experiments. Relations of polarons..." @default.
- W2023393987 created "2016-06-24" @default.
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- W2023393987 date "1992-12-01" @default.
- W2023393987 modified "2023-09-26" @default.
- W2023393987 title "Polaron Excitations in Buckminsterfullerenes: Doped C60 and C70" @default.
- W2023393987 doi "https://doi.org/10.1142/s0217979292002036" @default.
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