Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
2002-12-02
Physics
Condensed Matter
Strongly Correlated Electrons
6 pages, 4 figures
Scientific paper
10.1016/S0921-4526(03)00017-6
The layered perovskite compound NaV_2O_5 exhibits charge ordering (CO) and spin gap formation which is driven by inter- site Coulomb forces and exchange dimerisation. Experimentally it was found that the CO transition is rapidly reduced by doping. Charge ordering in NaV_2O_5 has a quasi 1D character due to inter- ladder frustration in the Trellis lattice. Based on an extended pseudospin (T=1) approach for hole doped NaV_2O_5 ladders we construct an Ising like model that explains qualitatively the destruction of the CO phase as function of hole doping \delta and show how the CO parameter depends on \delta and the ratio of Coulomb and hopping energies.
No associations
LandOfFree
Isospin model for suppression of charge order in hole- doped NaV_2O_5 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Isospin model for suppression of charge order in hole- doped NaV_2O_5, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Isospin model for suppression of charge order in hole- doped NaV_2O_5 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-602415