Electron-Hole Symmetry and Magnetic Coupling in Antiferromagnetic LaOFeAs

Z. P. Yin, S. Lebègue, M. J. Han +3

When either electron or hole doped at concentrations $x\sim 0.1$, the LaOFeAs family displays remarkably high temperature superconductivity with T${}_c$ up to 55 K. In the most energ…