Acoustoelectric current in graphene due to electron deformation potential and piezoelectric phonon couplings

Autor: Nafees, Subhana, Ashraf, S. S. Z., Obaidurrahman, M.

Recent studies strongly indicate that graphene can be used as a channel material for converting surface acoustic waves to acoustoelectric current, which is a resource for various exciting technological applications. On the theoretical side, studies o

Externí odkaz: http://arxiv.org/abs/2112.06041

Inelastic scattering and cooling of photoexcited electrons through coupling with acoustic, optic and surface polar optic phonons in graphene

Autor: Khatoon, S. Arshia, Ansari, Meenhaz, Ashraf, S. S. Z., Obaidurrahman, M.

Publikováno v: Journal of Applied Physics 129, 014308 (2021)

The acoustic, optic, and surface polar optic phonons are the three important intrinsic and extrinsic phononic modes that increasingly populate graphene on a substrate with rising temperatures; the coupling of which with photoexcited hot carriers in t

Externí odkaz: http://arxiv.org/abs/2007.14026

Energy relaxation rate and power loss density in graphene on GaAs substrate due to piezoelectric surface acoustic phonons.

Autor: Arshia Khatoon, S., Ansari, Meenhaz, Ashraf, S. S. Z.

Publikováno v: International Journal of Modern Physics B: Condensed Matter Physics; Statistical Physics; Applied Physics; 10/30/2024, Vol. 38 Issue 27, p1-15, 15p

Terahertz acoustic phonon Cerenkov emission in bilayer graphene.

Autor: Ansari, Meenhaz, Nafees, Subhana, Ashraf, S. S. Z., Ahmad, Absar

Publikováno v: Journal of Applied Physics; 7/14/2022, Vol. 132 Issue 2, p1-10, 10p

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