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| DOI | 10.1103/PHYSREVB.93.245434 | ||||
| Año | 2016 | ||||
| Tipo | artículo de investigación |
Citas Totales
Autores Afiliación Chile
Instituciones Chile
% Participación
Internacional
Autores
Afiliación Extranjera
Instituciones
Extranjeras
Recent studies have focused on laser-induced gaps in graphene which have been shown to have a topological origin, thereby hosting robust states at the sample edges. While the focus has remainedmainly on these topological chiral edge states, the Floquet bound states around defects lack a detailed study. In this paper we present such a study covering large defects of different shape and also vacancy-like defects and adatoms at the dynamical gap at h Omega/2 (h Omega being the photon energy). Our results, based on analytical calculations as well as numerics for full tight-binding models, show that the bound states are chiral and appear in a number which grows with the defect size. Furthermore, while the bound states exist regardless of the type of the defect's edge termination (zigzag, armchair, mixed), the spectrum is strongly dependent on it. In the case of top adatoms, the bound state quasienergies depend on the adatoms energy. The appearance of such bound states might open the door to the presence of topological effects on the bulk transport properties of dirty graphene.
| Ord. | Autor | Género | Institución - País |
|---|---|---|---|
| 1 | Lovey, D. A. | - |
COMIS NACL ENERGIA ATOM - Argentina
Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) - Argentina Centro Atomico Bariloche - Argentina Consejo Nacional de Investigaciones Científicas y Técnicas - Argentina |
| 2 | Usaj, Gonzalo | Hombre |
COMIS NACL ENERGIA ATOM - Argentina
Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) - Argentina Centro Atomico Bariloche - Argentina Consejo Nacional de Investigaciones Científicas y Técnicas - Argentina |
| 3 | FOA-TORRES, LUIS EDUARDO FRANCISCO | Hombre |
Universidad de Chile - Chile
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| 3 | Foa Torres, L. E.F. | - |
Universidad de Chile - Chile
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| 4 | Balseiro, C. A. | - |
COMIS NACL ENERGIA ATOM - Argentina
Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) - Argentina Centro Atomico Bariloche - Argentina Consejo Nacional de Investigaciones Científicas y Técnicas - Argentina |
| Fuente |
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| CONICET |
| SECyT-UNC |
| Abdus Salam ICTP associateship program |
| Bicentenario from ANPCyT |
| Agradecimiento |
|---|
| We acknowledge financial support from PICTs 2008-2236 and 2011-1552 and Bicentenario 2010-1060 from ANPCyT, PIPs 11220080101821 and 11220110100832 from CONICET, and 06/C415 SeCyT-UNC. G.U. and L.E.F.F.T. acknowledge support from the Abdus Salam ICTP associateship program, and G.U. also thanks the Simons Foundation. L.E.F.F.T. is on leave from CONICET and Universidad Nacional de Cordoba (Argentina). |