Díaz García, ElenaMiralles, K.Domínguez-Adame Acosta, FranciscoGaul, Christopher2023-06-192023-06-192014-09-080003-695110.1063/1.4895673https://hdl.handle.net/20.500.14352/33978© 2014 AIP Publishing LLC. We thank E. Diez and Y. M. Meziani for helpful discussions. Work in Madrid was supported by MINECO (Project Nos. MAT2010-17180 and MAT2013-46308).We theoretically study the occurrence of Bloch oscillations in biased hybrid graphene systems with spin-dependent superlattices. The spin-dependent potential is realized by a set of ferromagnetic insulator strips deposited on top of a gapped graphene nanoribbon, which induce a proximity exchange splitting of the electronic states in the graphene monolayer. We numerically solve the Dirac equation and study Bloch oscillations in the lowest conduction band of the spin-dependent superlattice. While the Bloch frequency is the same for both spins, we find the Bloch amplitude to be spin dependent. This difference results in a spin-polarized ac electric current in the THz range.engjournal articlehttp://scitation.aip.org/content/aip/journal/apl/105/10/10.1063/1.4895673http://www.aip.org/open access538.9Graphene superlatticesTerahertz oscillatorsFísica de materiales