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Excitonic mass gap in uniaxially strained graphene
Anand Sharma, Valeri N. Kotov, Antonio H. Castro Neto
We study the conditions for spontaneously generating an excitonic mass gap due to Coulomb interactions between anisotropic Dirac fermions in uniaxially strained graphene. The mass…
Controlling many-body states by the electric-field effect in a two-dimensional material
Linjun Li, Eoin C. T. O Farrell, Kianping Loh +3
To understand complex physics of a system with strong electron electron interactions, it is ideal to control and monitor its properties while tuning an external electric field appl…
Optical conductivity renormalization of graphene on SrTiO due to resonant excitonic effects mediated by Ti 3\textit{d} orbitals
Pranjal Kumar Gogoi, Paolo E. Trevisanutto, Ming Yang +10
We present evidence of a drastic renormalization of the optical conductivity of graphene on SrTiO resulting in almost full transparency in the ultraviolet region. These finding…
Magnetic exchange mechanism for electronic gap opening in graphene
T. G. Rappoport, M. Godoy, B. Uchoa +2
We show within a local self-consistent mean-field treatment that a random distribution of magnetic adatoms can open a robust gap in the electronic spectrum of graphene. The electro…