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

Valentina Cantatore (Institutionen för kemi och kemiteknik, Oorganisk miljökemi) ; Itai Panas (Institutionen för kemi och kemiteknik, Oorganisk miljökemi)
Condensed Matter (2410-3896). Vol. 2 (2017), 4, p. 34.
[Artikel, refereegranskad vetenskaplig]

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.

Nyckelord: superconductivity; boron-doping; graphene; FeSe; electron correlation; heterostructures

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Denna post skapades 2017-11-02.
CPL Pubid: 252906


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