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Seminario de Física de la Materia Condensada

2 Diciembre, 2020 @ 4:30 pm - 5:30 pm

Tendremos como invitada a la profesora Andrea Latge del Instituto de Física de la U. Federal Fluminense, Niterói, Brasil.

Titulo: Valley filtered current in multi-terminal graphene platforms

Abstract:

Valley filtering processes have been explored in different graphene-based configurations and scenarios to control transport responses. Here we propose different   graphene-vase devices and multi-terminal set-ups properly designed to obtain valley-filtered currents in a broader range of energy. In the case of graphene multi-terminal devices we further get the possibility of controlling the filtered current directions. Graphene systems with extended mechanical fold-like deformations are explored as an opportunity to enhance valley filtered transmission. A favorable configuration is presented by mixing the electronic confinement effects due to a magnetic field and strain, resulting in a selective drive of the current components in the quantum Hall regime.
ID de reunión: 934 5197 8812
Código de acceso: 098839

Details

Date:
2 Diciembre, 2020
Time:
4:30 pm - 5:30 pm
Event Category: