Strain engineering of multi-interband optical transitions in β12-borophene

Electron–phonon coupling effect on the optical absorption of gated β12-borophene

“…The optical conductivity of strained monolayer β 12 -borophene has been recently analyzed using the Kubo formula and a five-band tight-binding model. 40 Modifying the electron hopping energy according to the Harrison rule under strain, they have examined its impact on electronic dispersion and optical conductivity. Their findings reveal that tensile strain converts inherent massless Dirac fermions into massive ones, while compressive strain doubles inherent triplet fermions.…”