Enhanced Manifold of States Achieved in Heterostructures of Iron Selenide and Boron-Doped Graphene

Condensed Matter

Cantatore, Valentina¹ 

关键词: superconductivity;    boron-doping;    graphene;    FeSe;    electron correlation;    heterostructures;   

DOI  :  10.3390/condmat2040034

学科分类：凝聚态物理

来源: mdpi

【 摘 要 】

Enhanced superconductivity is sought by employing heterostructures composed of boron-doped graphene and iron selenide. Build-up of a composite manifold of near-degenerate noninteracting states formed by coupling top-of-valence-band states of FeSe to bottom-of-conduction-band states of boron-doped graphene is demonstrated. Intra- and intersubsystem excitons are explored by means of density functional theory in order to articulate a normal state from which superconductivity may emerge. The results are discussed in the context of electron correlation in general and multi-band superconductivity in particular.

【 授权许可】

CC BY