Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
2004-08-24
Phys. Rev. B 71, 184514 (2005)
Physics
Condensed Matter
Strongly Correlated Electrons
4 pages, 4 figures, 3 tables
Scientific paper
10.1103/PhysRevB.71.184514
We study charge ordered d-wave resonating valence bond states (dRVB) in the doped cuprates, and estimate the energies of these states in a generalized $t-J $ model by using a renormalized mean field theory. The long range Coulomb potential tends to modulate the charge density in favor of the charge ordered RVB state. The possible relevance to the recently observed $4 \times 4$ checkerboard patterns in tunnelling conductance in high $T_c$ cuprates is discussed.
Huang Huai-Xiang
Li You-Quan
Zhang Fu Chun
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