Time evolution of Floquet states in graphene
Mesoscale and Nanoscale Physics
2017-02-22 v1
Abstract
Based on a solution of the Floquet Hamiltonian we have studied the time-evolution of electronic states in graphene nanoribbons driven out of equilibrium by time-dependent electromagnetic fields in different regimes of intensity, polarization and frequency. We show that the time-dependent band structure contains many unconventional features that are not captured by considering the Floquet eigenvalues alone. By analyzing the evolution in time of the state population we have identified regimes for the emergence of time-dependent edge states responsible of charge oscillations across the ribbon.
Keywords
Cite
@article{arxiv.1702.06349,
title = {Time evolution of Floquet states in graphene},
author = {Franca Manghi and Matteo Puviani and Francesco Lenzini},
journal= {arXiv preprint arXiv:1702.06349},
year = {2017}
}