论文标题

多体效应,轨道混合和双层石墨烯中的回旋共振

Many-body effects, orbital mixing and cyclotron resonance in bilayer graphene

论文作者

Shizuya, K.

论文摘要

在磁场中,双层石墨烯在最低的Landau水平上支持八个特征零能量水平,在Landau轨道中具有额外的双层变性,$ n = \ {0,1,1 \} $。在一般的一体和多体相互作用下,它们演变成伪零模式(PZM)水平。仔细观察了它们所托管的这种PZM水平和回旋共振的详细结构和特征,并充分说明了自旋分裂,层间偏置,弱电子孔不对称和库仑相互作用。可以指出的是,PZM水平通常会逐渐充满电子,并且在有限的填充范围内观察到了侧面循环量的共振,这是探索bilayerereere gruneene in Billayerereere的多体效应和轨道混合的直接和敏感的探针,因此通常会经历轨道水平的混合(在一个山谷或两个山谷中)。

In a magnetic field bilayer graphene supports, at the lowest Landau level, eight characteristic zero-energy levels with an extra twofold degeneracy in Landau orbitals $n=\{0,1\}$. They, under general one-body and many-body interactions, evolve into pseudo-zero-mode (PZM) levels. A close look is made into the detailed structure and characteristics of such PZM levels and cyclotron resonance they host, with full account taken of spin splitting, interlayer bias, weak electron-hole asymmetry and Coulomb interactions. It is pointed out that the PZM levels generally undergo orbital level mixing (in one valley or both valleys) as they are gradually filled with electrons and that an observation of interband cyclotron resonance over a finite range of filling provides a direct and sensitive probe for exploring many-body effects and orbital mixing in bilayer graphene.

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