Soliton Confinement and the Excitation Spectrum of Spin-Peierls Antiferromagnets
Abstract
Description
The excitation spectrum of spin-Peierls antiferromagnets is discussed taking into acount phonon dynamics but treating inter-chain elastic couplings in mean field theory. This gives a ladder of soliton -anti-soliton boundstates, with no soliton continuum, until soliton deconfinement takes place at a transition into a non-dimerized phase.
5 pages, Latex, 1 postscript figure
5 pages, Latex, 1 postscript figure