| Literature DB >> 30166450 |
Gerald R Kneller1,2.
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.Keywords: Van Hove theory; complex systems; energy landscapes; neutron scattering theory; quasielastic neutron scattering
Year: 2018 PMID: 30166450 PMCID: PMC6156675 DOI: 10.1073/pnas.1718720115
Source DB: PubMed Journal: Proc Natl Acad Sci U S A ISSN: 0027-8424 Impact factor: 11.205