Orbital susceptibility of T-graphene: Interplay of high-order van Hove singularities and Dirac cones

Square-octagon lattice underlies the description of a family of two-dimensional materials such as tetragraphene. In the present paper we show that the tight-binding model of square-octagon lattice contains both conventional and high-order van Hove points. In particular, the spectrum of the model con...

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Veröffentlicht in:	Physical review. B 2021-05, Vol.103 (19), p.1, Article 195104
Hauptverfasser:	Oriekhov, D. O., Gusynin, V. P., Loktev, V. M.
Format:	Artikel
Sprache:	eng
Schlagworte:	Binding Cones Diamagnetism Graphene Phase transitions Saddle points Singularities Two dimensional materials
Online-Zugang:	Volltext
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