title: Elementary excitations in the cyclic molecular nanomagnet Cr8.
abstract: Combining recent and new inelastic neutron scattering data for the molecular cyclic cluster Cr8 produces a deep understanding of the low lying excitations in bipartite antiferromagnetic Heisenberg rings. The existence of the L band, the lowest rotational band, and the E band, essentially spin wave excitations, is confirmed spectroscopically. The different significance of these excitations and their physical nature is clearly established by high-energy and Q-dependence data.
authors.affiliation: Department of Physics, The Ohio State University, Columbus, Ohio 43210, USA. waldmann@mps.ohio-state.edu
authors.forename: O
authors.initials: O
authors.lastname: Waldmann
authors.forename: T
authors.initials: T
authors.lastname: Guidi
authors.forename: S
authors.initials: S
authors.lastname: Carretta
authors.forename: C
authors.initials: C
authors.lastname: Mondelli
authors.forename: A L
authors.initials: AL
authors.lastname: Dearden