Invalidity of Classes of Approximated Hall Effect Calculations
Condensed Matter
2009-10-31 v2
Abstract
In this comment, I point out a number of approximated derivations for the effective equation of motion, now been applied to d-wave superconductors by Kopnin and Volovik are invalid. The major error in those approximated derivations is the inappropriate use of the relaxation time approximation in force-force correlation functions, or in force balance equations, or in similar variations. This approximation is wrong and unnecessary.
Keywords
Cite
@article{arxiv.cond-mat/9801180,
title = {Invalidity of Classes of Approximated Hall Effect Calculations},
author = {P. Ao},
journal= {arXiv preprint arXiv:cond-mat/9801180},
year = {2009}
}
Comments
final version, minor changes, to appear in Phys. Rev. Lett