Panagopoulos C, Majoros M, Nishizaki T, Iwasaki H
Cavendish Laboratory, University of Cambridge, Cambridge CB3 0HE, United Kingdom.
Phys Rev Lett. 2006 Feb 3;96(4):047002. doi: 10.1103/PhysRevLett.96.047002. Epub 2006 Feb 1.
We report magnetization measurements in the normal state of the high transition temperature (high-Tc) superconductor La2-xSrxCuO4. A magnetic order in the form of hysteresis in the low-field magnetization is observed at temperatures well above Tc. The doping (x) dependence of the onset and strength of this order follows Tc(x) and falls within the pseudogap regime.