Comment on "Theory of diluted magnetic semiconductor ferromagnetism"
Min-Fong Yang, Shih-Jye Sun, Ming-Che Chang
Abstract
In this comment, we emphasize that the self-consistent spin wave theory in a recent paper [J. K"onig, H.-H. Lin, and A. H. MacDonald, Phys. Rev. Lett. 84, 5628 (2000)] leads to incorrect results both at low temperatures and near Tc. Thus we suggest another self-consistent spin wave approximation to remedy these flaws.
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