%0 Journal Article %T Aspects of the normal state phase of copper oxide planes in high Tc superconductors %A B. C. den Hertog %A M. P. Das %J Physics %D 1996 %I arXiv %R 10.1103/PhysRevB.54.6693 %X We examine various aspects of the normal state phase of ${\rm CuO_{2}}$ planes in the high Tc superconductors. In particular, within the context of the three band Hubbard model, we study as a function of doping the competition between a charge density wave phase induced by oxygen breathing modes, antiferromagnetic order and paramagnetism. To account for the strong electronic interactions, we use the finite $U$ slave boson method of Kotliar and Ruckenstein. %U http://arxiv.org/abs/cond-mat/9606032v1