Álvaro Gómez-León

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We investigate the effect of an in-plane ac electric field coupled to electrons in the honeycomb lattice and show that it can be used to manipulate the Dirac points of the electronic structure. We find that the position of the Dirac points can be controlled by the amplitude and the polarization of the field for high-frequency drivings, providing a new(More)
We show theoretically that periodically driven systems with short range Hubbard interactions offer a feasible platform to experimentally realize fractional Chern insulator states. We exemplify the procedure for both the driven honeycomb and the square lattice, where we derive the effective steady state band structure of the driven system by using the(More)
Álvaro Gómez-León,1,3,4 Pierre Delplace,2 and Gloria Platero1 1Instituto de Ciencia de Materiales, CSIC, Cantoblanco, Madrid E-28049, Spain 2Département de Physique Théorique, Université de Genève, CH-1211 Genève, Switzerland 3Department of Physics & Astronomy, University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada 4Pacific Institute of(More)
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