Faraday effect in rippled graphene: Magneto-optics and random gauge fields

Schiefele, J. ; Martin-Moreno, L. (Universidad de Zaragoza) ; Guinea, F.

Resumen: A beam of linearly polarized light transmitted through magnetically biased graphene can have its axis of polarization rotated by several degrees after passing the graphene sheet. This large Faraday effect is due to the action of the magnetic field on graphene''s charge carriers. As deformations of the graphene membrane result in pseudomagnetic fields acting on the charge carriers, the effect of random mesoscopic corrugations (ripples) can be described as the exposure of graphene to a random pseudomagnetic field. We aim to clarify the interplay of these typically sample inherent fields with the external magnetic bias field and the resulting effect on the Faraday rotation. In principle, random gauge disorder can be identified from a combination of Faraday angle and optical spectroscopy measurements.

Idioma: Inglés

DOI: 10.1103/PhysRevB.94.035401

Año: 2016

Publicado en: Physical Review B. Condensed Matter and Materials Physics 94, 3 (2016), 035401 [7 pp]
ISSN: 1098-0121

Factor impacto JCR: 3.836 (2016)

Categ. JCR: PHYSICS, CONDENSED MATTER rank: 18 / 67 = 0.269 (2016) - Q2 - T1

Factor impacto SCIMAGO: 2.339 - Electronic, Optical and Magnetic Materials (Q1) - Condensed Matter Physics (Q1)

Financiación: info:eu-repo/grantAgreement/EC/FP7/290846/EU/Novel uses for graphene/NOVGRAPHENE
Financiación: info:eu-repo/grantAgreement/EC/FP7/604391/EU/Graphene-Based Revolutions in ICT And Beyond/GRAPHENE
Financiación: info:eu-repo/grantAgreement/ES/MINECO/FIS2014-207432

Tipo y forma: Article (Published version)

Área (Departamento): Área Física Materia Condensada (Dpto. Física Materia Condensa.)