Order and disorder in the triangular-lattice t-J-V model at 2/3 electron density

W. Zheng, J. Oitmaa, C. J. Hamer +1

Motivated by the recent discovery of superconductivity in Na${}_x$CoO${}_2\cdot y$H${}_2$O, we use series expansion methods and cluster mean-field theory to study spontaneous charge orde…