Staggered flux state and charge order in a 2-leg triangular ladder system
Source: The European Physical Journal B - Condensed Matter, Volume 65, Number 2, September 2008 , pp. 191-194(4)
Abstract:Based on the t-J-V model, the possibility of the staggered flux(SF) state in a 2-leg triangular ladder system at 1/4 filling has been studied by investigating the staggered current-current correlations. We found that the amplitude of rung-rung staggered current correlations decays exponentially with a correlation length 2-3 lattice spacing. The short-range SF state becomes more stable when increasing V and becomes most stable in the vicinity of charge instability point of the system. Over the critical V value, the system becomes charge ordered.
Document Type: Research article
Affiliations: 1: National Laboratory of Solid State Microstructure and Department of Physics, Nanjing University, Nanjing, 210093, P.R. China, Email: email@example.com 2: National Laboratory of Solid State Microstructure and Department of Physics, Nanjing University, Nanjing, 210093, P.R. China
Publication date: 2008-09-01