Physics of Strange worlds: From “Crystal pure” vdW heterostructures to incommensurability & Disorderness-driven Emerging features

When:
25/07/2019 @ 11:00 AM – 12:00 PM Asia/Singapore Timezone
2019-07-25T11:00:00+08:00
2019-07-25T12:00:00+08:00
Where:
S16 Level 6 – Theory Common Conference Room

Speaker: Prof Stephan Roche
Affiliation: ICREA - Catalan Institute of Nanosciences and Nanotechnology - ICN2
Host: Asst Prof Vitor Pereira
Location: Click HERE for directions

Abstract Details: In this talk, I will discuss some theoretical issues concerning the study of quantum transport in graphene and van der Waals heterostructures in presence of disorder and aperiodic potential due to Moiré or incommensurate potentials. A short mention to the physics of quasicrystals as driver to extend the computational capability of existing conventional scaling methods will be given, and illustrations of emerging features in defected structures in presence of magnetic fields, superlattice potentials and spin-orbit coupling –mediated pseudomagnetic fields will follow.

Reference: Introduction to Graphene-Based Nanomaterials
From Electronic Structure to Quantum Transport
AUTHORS: Luis E. F. Foa Torres, Stephan Roche and Jean-Christophe Charlier (Cambridge University Press 2014)
ISBN: 9781107030831

About the Speaker: ICREA Prof. Stephan Roche is working at the Catalan Institute of Nanosciences and Nanotechnology-ICN2 and the Barcelona Institute of Science and Technology. He leads the "Theoretical and Computational Nanoscience" group which focuses on quantum physics in Dirac materials (graphene and topological insulators). He pioneered the development of linear scaling computational approaches for wavepacket dynamics, Kubo conductivities, and Landauer-Büttiker conductance in disordered materials. He studied Theoretical Physics at ENS and University UJF (France), received a PhD in Physics in 1996 (CNRS), and worked in Japan, Spain and Germany. He was appointed Assistant Prof. at UJF (2000) and CEA Researcher (2004). He received the Friedrich Wilhelm Bessel prize from the Alexander von Humboldt Foundation (Germany). He is the PI of ICN2 in the GRAPHENE FLAGSHIP, and is deputy leader of the Graphene Spintronics Workpackage.