对“使用Slonczewski-Weiss-McClure三维能带结构计算对石墨低温磁输运的一致性解释”(arXiv:0902.1925)的评论
Comment on "Consistent Interpretation of the Low-Temperature Magnetotransport in Graphite Using the Slonczewski-Weiss-McClure 3D Band-Structure Calculations" (arXiv:0902.1925)
摘要:
在2004年,我们已经表明,石墨中的导电性的很大一部分是由无质量的线性光谱的空穴-狄拉克费米子,与大量的正常载流子-电子共存。在最近的一封信[物理。102,166403(2009),arXiv:0902.1925] Schneider等人修改了我们的结论,指出两种类型的载体都是巨大的。由于这两个群体使用相同的方法来确定Shubnikov de Haas振荡的相位,我们在这里评论说,争议源于Schneider 2009等人对实验结果的不当处理。
英文摘要:
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.
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