1207.1261 (D. I. Uzunov)

Comment on "Fluctuation-induced first-order transition p-wave
superconductors" by Qi Li, D. Belitz, and J. Toner [Phys. Rev. B79, 054514
(2009)]    [PDF]

D. I. Uzunov

In this Comment, we show that the paper by Qi Li, D. Belitz and J. Toner, published in Phys. Rev. B79, 054514 (2009), contains an incomplete mean-field analysis of a simple model of Ginzburg-Landau type. The latter contains a stable non-unitary phase, which has is not been found in this study and is missing in the outlined picture of possible stable phases. Both mean-field and renormalization-group studies in this publication overlook previous papers, including those in Phys. Rev. B. As it turns, the authors re-derive and publish known results.

View original: http://arxiv.org/abs/1207.1261