Directional Control of Charge and Valley Currents in a Graphene-Based Device

Autor:	Matias Berdakin, José Eduardo Barrios Vargas, Luis E. F. Foa Torres
Rok vydání:	2018
DOI:	10.26434/chemrxiv.7283177.v1
Popis:	We propose a directional switching effect in a metallic device. To such end we exploit a graphene-based device with a three-terminal geometry in the presence of a magnetic field. We show that unidirectional charge and valley currents can be controlled by the Fermi energy and the magnetic field direction in the active device. Interestingly, unidirectional transport of charge and valley is generated between two-terminals at the same bias voltage. Furthermore, we quantify the valley depolarization as a function of disorder concentration. Our results open a way for active graphene-based valleytronics devices.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::70fd8e7f3b35ed6a25ff8e7ac8fa8885 https://doi.org/10.26434/chemrxiv.7283177.v1 Zobrazit plný text záznamu