Short-range Charge and Spin Superstructures in Doped Layered Co Perovskites

N. Sakiyama, I. A. Zaliznyak, S. -H. Lee +2

We have investigated cobaltite relatives of the layered perovskite cuprates and nickelates, Pr${}_{2-x}$Ca${}_x$CoO${}_4$ ($0.39\le x\le 0.73$) and La${}_{2-x}$Sr${}_x$CoO${}_4$ ($x = 0.61…