论文标题

铁烯在铁磁底物上:电子液体的不稳定性

Graphene on a ferromagnetic substrate: instability of the electronic liquid

论文作者

Dresviankin, D. N., Rozhkov, A. V., Sboychakov, A. O.

论文摘要

我们先前以前显示了[JETP字母,{\ bf 114},763(2021)],放置在铁磁底物上的石墨烯样品表明了合作的磁性电子不稳定性。不稳定性引起电子光谱的间隙,并在石墨烯 - 基底界面附近的磁化强度变形。在本文中,我们证明石墨烯中电子之间的相互作用强烈增强了不稳定性。我们的估计表明,即使存在中等相互作用,不稳定性也可以足够发音,可以在现实的环境中实验检测到。

We previously show [JETP Letters, {\bf 114}, 763 (2021)] that a graphene sample placed on a ferromagnetic substrate demonstrates a cooperative magnetoelectronic instability. The instability induces a gap in the electronic spectrum and a canting deformation of the magnetization near the graphene-substrate interface. In this paper we prove that the interaction between the electrons in graphene strongly enhances the instability. Our estimates suggest that in the presence of even a moderate interaction the instability can be sufficiently pronounced to be detected experimentally in a realistic setting.

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