Intra-Landau-level cyclotron resonance in bilayer graphene
Intra-Landau-level cyclotron resonance in bilayer graphene
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DOI：
10.1103/physrevlett.101.097601
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发表时间：
2008-08-29
影响因子：
8.6
通讯作者：
MacDonald, A. H.
中科院分区：
文献类型：
--
作者：
Barlas, Yafis;Cote, R.;MacDonald, A. H.
由于中性体系费米能级附近的八个朗道能级的近简并性，在石墨烯双层中预期相互作用驱动的整数量子霍尔效应。我们预测，内朗道能级回旋共振信号将出现在一些奇数填充因子，伴随着集体模式，这是几乎没有带隙，并有近似k（3/2）的色散。我们推测与这些模式相关的不寻常的本地化物理的可能性。
Interaction driven integer quantum-Hall effects are anticipated in graphene bilayers because of the near degeneracy of the eight Landau levels which appear near the neutral system Fermi level. We predict that an intra-Landau-level cyclotron resonance signal will appear at some odd-integer filling factors, accompanied by collective modes which are nearly gapless and have approximate k(3/2) dispersion. We speculate on the possibility of unusual localization physics associated with these modes.