Abstract
The magnetic order of ( ) has been investigated with techniques. In this system a low temperature tetragonal (LTT) structure is present in the entire range of doping and it is possible to follow the evolution from the long range antiferromagnetic state at to the static magnetic stripes. We find a nonmonotonic change of the Néel temperature with increasing and the obtained magnetic phase diagram of the LTT phase resembles the generic phase diagram of the cuprates where the superconductivity is replaced by a second antiferromagnetic phase.
- Received 4 August 2000
DOI:https://doi.org/10.1103/PhysRevLett.85.4590
©2000 American Physical Society