论文标题
评论“电子旋转共振和魔法扭曲双层石墨烯中的集体激发”
Comment on "Electron spin resonance and collective excitations in magic-angle twisted bilayer graphene"
论文作者
论文摘要
此评论与Morissette {\ it等人}的最新手稿有关[arxiv：2206.08354v1]。作者声称在电子旋转共振实验中发现了集体激发的特征，这些特征将与魔术角双层石墨烯的相关结构相关。然而，在以前的关于单层石墨烯和几层石墨烯的作品中已经报道了相同的共振特征，从而使他们的理论框架无效。地石墨烯的单粒子拓扑非平凡带结构中的直截了当的理论图片为观察共振特征的观察提供了令人满意的解释，并适用于Morissette {\ it等人}提供的数据。但是，作者忽略了这种直观的图片。
This comment pertains the recent manuscript by Morissette {\it et al.} [arXiv:2206.08354v1]. The authors claim to have found signatures of collective excitations in electron spin resonance experiments that would be linked to the correlated structure of magic angle bilayer graphene. However, identical resonance features have already been reported in previous works on mono- and few-layer graphene, voiding their theoretical framework. A straight forward theoretical picture within the single-particle topologically non-trivial band structure of graphene delivers satisfactory explanations for the observation of the resonant features and applies as well to the data presented by Morissette {\it et al.}. However, this intuitive picture has been disregarded by the authors.
