caa a22 4500 528786334 20190713030956.0 cr unu---uuuuu 180924s2017 xx s 000 0 eng 10.3929/ethz-b-000129718 doi 10.1038/ncomms14626 doi (ETHRESEARCH)oai:www.research-collection.ethz.ch:20.500.11850/129718 Electrically controlled terahertz magneto-optical phenomena in continuous and patterned graphene [Elektronische Daten] [Jean-Marie Poumirol, Peter Q. Liu, Tetiana M. Slipchenko, Alexey Y. Nikitin, Luis Martin-Moreno, Jérome; id_orcid 0000-0003-4429-7988 Faist, Alexey B. Kuzmenko] Nat Commun Open access ethresearch The magnetic circular dichroism and the Faraday rotation are the fundamental phenomena of great practical importance arising from the breaking of the time reversal symmetry by a magnetic field. In most materials, the strength and the sign of these effects can be only controlled by the field value and its orientation. Furthermore, the terahertz range is lacking materials having the ability to affect the polarization state of the light in a non-reciprocal manner. Here we demonstrate, using broadband terahertz magneto-electro-optical spectroscopy, that in graphene both the magnetic circular dichroism and the Faraday rotation can be modulated in intensity, tuned in frequency and, importantly, inverted using only electrostatic doping at a fixed magnetic field. In addition, we observe strong magneto-plasmonic resonances in a patterned array of graphene antidots, which potentially allows exploiting these magneto-optical phenomena in a broad THz range. Creative Commons Attribution 4.0 International http://creativecommons.org/licenses/by/4.0 ethresearch Poumirol Jean-Marie joint author Liu Peter Q. joint author Slipchenko Tetiana M. joint author Nikitin Alexey Y. joint author Martin-Moreno Luis joint author Faist Jérome; id_orcid 0000-0003-4429-7988 joint author Kuzmenko Alexey B. joint author Nature Communications London : Nature Publishing Group 8, p. 14626 2041-1723 http://hdl.handle.net/20.500.11850/129718 text/html WWW-Backlink auf das Repository (Open access) 1 Journal Article ethresearch ETHRESEARCH 856 40 http://hdl.handle.net/20.500.11850/129718 text/html WWW-Backlink auf das Repository (Open access) ETHRESEARCH 700 1- Poumirol Jean-Marie joint author ETHRESEARCH 700 1- Liu Peter Q. joint author ETHRESEARCH 700 1- Slipchenko Tetiana M. joint author ETHRESEARCH 700 1- Nikitin Alexey Y. joint author ETHRESEARCH 700 1- Martin-Moreno Luis joint author ETHRESEARCH 700 1- Faist Jérome; id_orcid 0000-0003-4429-7988 joint author ETHRESEARCH 700 1- Kuzmenko Alexey B. joint author ETHRESEARCH 773 0- Nature Communications London : Nature Publishing Group 8, p. 14626 2041-1723 BK010053 XK010053 XK010000 ETHRESEARCH ETHRESEARCH ETHRESEARCH Journal Article Open access