Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Comment on "Doping Driven ($\pi,0$) Nesting and Magnetic Properties of
  Fe$_{1+x}$Te Superconductors" [Phys. Rev. Lett. 103, 067001 (2009)]   In this Comment, using Korringa-Kohn-Rostoker coherent-potential
approximation method in the atomic-sphere approximation (KKR-ASA CPA) to
describe the effects of disorder due to excess Fe in FeTe alloys, we show that
(i) the rigid-band approximation is inadequate to describe the effects of
disorder and its application leads to an incorrect description of the
underlying physics, (ii) the rigid-band energy shift of ~0.76 eV for going from
FeTe to Fe_{1.068}Te (or Fe_{1.063}Te), as obtained by Han and Savrasov (Phys.
Rev. Lett. 103, 067001(2009)), is inconsistent with our FP-LMTO as well as the
KKR-ASA results, and thus the FS of Fe_{1.063}Te shown in Fig. 3(b) of their
paper is not correct.

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The categories of this paper are: astro-ph
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The categories of this paper are: physics
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The categories of this paper are: q-alg
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The categories of this paper are: plasm-ph
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The categories of this paper are: alg-geom
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The categories of this paper are: acc-phys
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The categories of this paper are: bayes-an
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The categories of this paper are: patt-sol
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The categories of this paper are: hep-ex
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The categories of this paper are: math
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The categories of this paper are: gr-qc
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The categories of this paper are: econ
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The categories of this paper are: atom-ph
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The categories of this paper are: q-fin
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The categories of this paper are: cmp-lg
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The categories of this paper are: nucl-ex