Print Email Facebook Twitter Breakdown of the Law of Reflection at a Disordered Graphene Edge Title Breakdown of the Law of Reflection at a Disordered Graphene Edge Author Walter, E. (Ludwig Maximilians University; JARA-FIT Institute for Quantum Information) Rosdahl, T.O. (TU Delft QRD/Wimmer Group; TU Delft QN/Akhmerov Group; Kavli institute of nanoscience Delft) Akhmerov, A.R. (TU Delft QN/Akhmerov Group; Kavli institute of nanoscience Delft) Hassler, F (Rheinisch-Westfälische Technische Hochschule) Date 2018-09-25 Abstract The law of reflection states that smooth surfaces reflect waves specularly, thereby acting as a mirror. This law is insensitive to disorder as long as its length scale is smaller than the wavelength. Monolayer graphene exhibits a linear dispersion at low energies and consequently a diverging Fermi wavelength. We present proof that for a disordered graphene boundary, resonant scattering off disordered edge modes results in diffusive electron reflection even when the electron wavelength is much longer than the disorder correlation length. Using numerical quantum transport simulations, we demonstrate that this phenomenon can be observed as a nonlocal conductance dip in a magnetic focusing experiment. To reference this document use: http://resolver.tudelft.nl/uuid:e6f04102-3247-4958-b0bd-068530304a0a DOI https://doi.org/10.1103/PhysRevLett.121.136803 ISSN 0031-9007 Source Physical Review Letters, 121 (13) Part of collection Institutional Repository Document type journal article Rights © 2018 E. Walter, T.O. Rosdahl, A.R. Akhmerov, F Hassler Files PDF PhysRevLett.121.136803.pdf 997.14 KB Close viewer /islandora/object/uuid:e6f04102-3247-4958-b0bd-068530304a0a/datastream/OBJ/view