Metallic stripe in two dimensions: stability and spin-charge separation
The problems of charge stripe formation, spin-charge separation, and stability of the antiphase domain wall (ADW) associated with a stripe are addressed using an analytical approach to the t- J(z) model. We show that a metallic stripe together with its ADW is the ground state of the problem in the low doping regime. The stripe is described as a system of spinons and magnetically confined holons strongly coupled to the two dimensional spin environment with holon-spin-polaron elementary excitations filling a one-dimensional band.
Chernyshev
AL
Department of Physics, University of California, Riverside, California 92521, USA.
Castro Neto AH
Bishop
AR