Volume 75, Number 5, September 2006
|Page(s)||839 - 840|
|Section||Geophysics, astronomy, and astrophysics|
|Published online||02 August 2006|
Comment on “Experimental critical exponents of “pure” ferromagnets: The cost of excessive proximity to may be too high” by M. D. Kuz'min and A. M. Tishin
School of Physics, University of Hyderabad - Hyderabad 500 046, India
Accepted: 17 July 2006
In a recent letter (Europhys. Lett., 73 (2006) 396), Kuz'min and Tishin claim that the previously reported results in the critical region on high-purity polycrystalline nickel and gadolinium single crystal are an artifact of the smearing of the ferromagnetic-to-paramagnetic phase transition by impurities. Contrary to this claim, we present conclusive experimental evidence to prove that the crossover phenomena in question are intrinsic to the systems concerned and occur in a temperature range (within the critical region) which lies well outside the temperature interval where the impurity-induced smearing is expected to become important.
PACS: 75.40.Cx – Static properties (order parameter, static susceptibility, heat capacities, critical exponents, etc.)
© EDP Sciences, 2006
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