Comment on “Spin Dynamics of the Electron-Doped High-$T_c$ Superconducting Cuprates”

A Comment on the Letter by F. Onufrieva and P. Pfeuty, Phys. Rev. Lett. 92, 247003 (2004). The authors of the Letter offer a Reply.

Figure 1

Calculated real part of the spin susceptibility, ${\chi }_0({\mathbf{Q}}_{\mathrm{AF}},0)$, as a function of hole doping concentration for $t^{\prime }/t=-0.3$ and $U/t=0$, 1, 2, 3, and 4 within the FLEX approximation.