Document Type
Article
Publication Date
6-20-2003
Publication Title
International Journal of Modern Physics B
Abstract
We calculate the contribution of deconfined spinons to inelastic neutron scattering (INS) in the fractionalized antiferromagnet (AF*), introduced elsewhere. We find that the presence of free spin-1/2 charge-less excitations leads to a continuum INS signal above the Néel gap. This signal is found above and in addition to the usual spin-1 magnon signal, which to lowest order is the same as in the more conventional confined antiferromagnet. We calculate the relative weights of these two signals and find that the spinons contribute to the longitudinal response, where the magnon signal is absent to lowest order. Possible higher-order effects of interactions between magnons and spinons in the AF* phase are also discussed.
Volume
17
Issue
15
First Page
2821
Last Page
2838
DOI
10.1142/S0217979203015802
ISSN
02179792
Recommended Citation
Lannert, Courtney and Fisher, Matthew P.A., "Inelastic Neutron Scattering Signal from Deconfined Spinons in a Fractionalized Antiferromagnet" (2003). Physics: Faculty Publications, Smith College, Northampton, MA.
https://scholarworks.smith.edu/phy_facpubs/72
Comments
Author’s submitted manuscript.