Comment on "Thermal fluctuations of magnetic nanoparticles"   [arXiv:1209.0298]
  We comment on some misleading and biased statements appearing in the manuscript arXiv:1209.0298 ("Thermal fluctuations of magnetic nanoparticles") about the use of the damped Landau-Lifshitz equation and the kinetic Langer theory for the calculation of the relaxation rate of magnetic nanoclusters. We reiterate simple scientific arguments, part of which is well known to the whole community, demonstrating that the authors' criticisms are unfounded and that they overstate the issue of damping in the Landau-Lifshitz equation with no unanimous experimental evidence. 
J.-L. D\'ejardin, H. Kachkachi, and J.-M. Martinez
cond-mat.mes-hall