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Gonzalez-Santander de la Cruz, Clara ; Domínguez-Adame Acosta, Francisco ; Roemer, R. A. | American Physical Society | 2011-12-01We study theoretically the optical properties of an exciton in a two-dimensional ring threaded by a magnetic flux. We model the quantum ring by a confining potential that can be continuously tuned from strictly one-dimensional to truly two-dimen[...]texto impreso
Gonzalez-Santander, C. ; Domínguez-Adame Acosta, Francisco ; Hilke, M. ; Roemer, R. A. | EPL Association, European Physical Society | 2013-10We show that electron states in disordered graphene, with an onsite potential that induces inter-valley scattering, are localised for all energies at disorder as small as 1/6 of the band width of clean graphene. We clarify that, in order for thi[...]
