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Recent Graphene Papers from APS

All-optical band engineering of gapped Dirac materials

Physical Review: Graphene - Wed, 01/03/2017 - 11:00pm

Author(s): O. V. Kibis, K. Dini, I. V. Iorsh, and I. A. Shelykh

We demonstrate theoretically that the interaction of electrons in gapped Dirac materials (gapped graphene and transition-metal dichalchogenide monolayers) with a strong off-resonant electromagnetic field (dressing field) substantially renormalizes the band gaps and the spin-orbit splitting. Moreover…

[Phys. Rev. B 95, 125401] Published Wed Mar 01, 2017

Robust Two-Dimensional Electronic Properties in Three-Dimensional Microstructures of Rotationally Stacked Turbostratic Graphene

Physical Review: Graphene - Thu, 23/02/2017 - 11:00pm

Author(s): Nils Richter, Yenny R. Hernandez, Sebastian Schweitzer, June-Seo Kim, Ajit Kumar Patra, Jan Englert, Ingo Lieberwirth, Andrea Liscio, Vincenzo Palermo, Xinliang Feng, Andreas Hirsch, Klaus Müllen, and Mathias Kläui

Turbostratic graphene disks feature multiple layers with rotational stacking order, which ensures electronic decoupling of adjacent layers. Despite there being up to 100 graphene sheets per disk, the authors find the signature of two−dimensional charge transport. With its central region well protected from environmental influence, this system combines the merits of single-layer graphene with a remarkable, consistent robustness, making it eminently suitable for device integration.

[Phys. Rev. Applied 7, 024022] Published Thu Feb 23, 2017

General Green's function formalism for layered systems: Wave function approach

Physical Review: Graphene - Fri, 17/02/2017 - 11:00pm

Author(s): Shu-Hui Zhang, Wen Yang, and Kai Chang

The single-particle Green's function (GF) of mesoscopic structures plays a central role in mesoscopic quantum transport. The recursive GF technique is a standard tool to compute this quantity numerically, but it lacks physical transparency and is limited to relatively small systems. Here we present …

[Phys. Rev. B 95, 075421] Published Fri Feb 17, 2017

Interaction effects in a chaotic graphene quantum billiard

Physical Review: Graphene - Mon, 13/02/2017 - 11:00pm

Author(s): Imre Hagymási, Péter Vancsó, András Pálinkás, and Zoltán Osváth

We investigate the local electronic structure of a Sinai-like, quadrilateral graphene quantum billiard with zigzag and armchair edges using scanning tunneling microscopy (STM) at room temperature. It is revealed that besides the (3×3)R30∘ superstructure, which is caused by the intervalley scattering…

[Phys. Rev. B 95, 075123] Published Mon Feb 13, 2017

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