Franck-Condon picture of incoherent neutron scattering.

ABSTRACT: A spectroscopic interpretation of incoherent neutron scattering experiments is presented which is based on Franck-Condon-type probabilities for scattering-induced transitions between quantum states of the target. The resulting expressions for the scattering functions enable an energy landscape-oriented analysis of neutron scattering spectra as well as a physical interpretation of Van Hove's space-time correlation functions in the quantum regime that accounts for the scattering kinematics. They suggest moreover a combined analysis of quasielastic and elastic scattering that become inseparable for complex systems with slow power-law relaxation.

SUBMITTER: Kneller GR 

PROVIDER: S-EPMC6156675 | biostudies-literature | 2018 Sep

REPOSITORIES: biostudies-literature