Transient structural response to photoexcitation in polyacetylene
- 15 December 1982
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 26 (12), 6901-6908
- https://doi.org/10.1103/physrevb.26.6901
Abstract
An equation-of-motion procedure to study intramolecular vibrational relaxation in polyatomic molecules is developed and applied to study the transient structural response of a polyene to photoexcitation. The lattice response at short times (∼20 fs) following excitation is characterized by an adiabatic relaxation which is highly specific to the exciting frequency. For longer times (20-1000 fs) this relaxation is strongly modified by the nonadiabatic relaxation of the excited carrier and takes the form of a "splash" in the bond-alternation profile, which reflects the transient distribution of the excited carrier in energy.Keywords
This publication has 16 references indexed in Scilit:
- Infrared-active vibrational modes of charged solitons inandPhysical Review B, 1981
- Solitons in Polyacetylene: Effects of Dilute Doping on Optical Absorption SpectraPhysical Review Letters, 1980
- Solitons in Polyacetylene: Effects of Dilute Doping on Optical Absorption SpectraPhysical Review Letters, 1980
- Vibrational Excitations of Charged Solitons in PolyacetylenePhysical Review Letters, 1980
- Magnetic susceptibility of doped polyacetylenePhysical Review B, 1979
- Solitons in PolyacetylenePhysical Review Letters, 1979
- Charged Π-phase kinks in lightly doped polyacetylenePhysics Letters A, 1979
- Donor and acceptor states in lightly doped polyacetylene,Physical Review B, 1979
- Polyacetylene, (CH)x: n-type and p-type doping and compensationApplied Physics Letters, 1978
- Electrical Conductivity in Doped PolyacetylenePhysical Review Letters, 1977