Charge-spin separation in one-dimensional metals and insulators
Abstract
Description
I discuss origin and possible experimental manifestations of charge-spin separation in 1D Luttinger and Luther-Emery liquids, the latter describing 1D Mott and Peierls insulators and superconductors. Emphasis is on photoemission where the spectral function generically shows two dispersing peaks associated with the collective charge and spin excitations, and on transport. I analyse the temperature dependences of the charge and spin conductivities of two organic conductors and conclude that most likely, charge-spin separation is not realized there and that they can be described as fluctuating Peierls insulators.
8 pages, 4 eps-figures, Latex, uses mprocl.sty to be published in Proceedings of the Ninth International Conference on Recent Progress in Many-Body Physics, Sydney, July 1997 (World Scientific)
8 pages, 4 eps-figures, Latex, uses mprocl.sty to be published in Proceedings of the Ninth International Conference on Recent Progress in Many-Body Physics, Sydney, July 1997 (World Scientific)