Physics – Condensed Matter – Mesoscale and Nanoscale Physics
Scientific paper
2009-07-12
Physics
Condensed Matter
Mesoscale and Nanoscale Physics
Scientific paper
In 2004 we have shown that substantial part of conductivity in graphite is provided by holes with massless linear spectrum - Dirac Fermions that coexist with massive normal carriers - electrons. In a recent Letter [Phys. Rev. Lett. 102, 166403 (2009), arXiv:0902.1925] Schneider et al. revised our conclusion pointed that both types of carriers are massive. Since both groups use the same method of phase determination of Shubnikov de Haas oscillation we comment here that the controversy originates from the improper treatment of experimental results in Schneider2009 et al.
Kopelevich Yakov
Luk'yanchuk Igor A.
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