ICREA Prof. Stephan Roche is working at the Catalan Institute of Nanosciences and Nanotechnology-ICN2. He leads the "Theoretical & Computational Nanoscience" group which focuses on physics of Topological Quantum Matter (graphene & topological insulators,...) and 2D materials-based van der Waals heterostructures. He pioneered the development of linear scaling quantum transport approaches enabling simulations of billion atoms-scale disordered models (www.lsquant.org). He studied Theoretical Physics at ENS, got PhD (1996) at Grenoble University (France); worked in Japan, Spain & Germany; appointed assistant Prof. in 2000, CEA Researcher in 2004 and ICREA in 2009. Award: Friedrich Wilhelm Bessel prize from the Alexander von Humboldt Foundation (Germany).
Research interests
S. Roche explores quantum transport in Topological Quantum Matter including graphene & topological insulators, and 2D materials-based van der Waals heterostructures and amorphous structures (amorphous boron-nitride & graphene). Topics (i) topological physics & entanglement (ii) Artificial Intelligence applied to Condensed Matter (ii) spin transport phenomena (iii) quantum decoherence mechanisms (iv) thermal transport at nanoscale (v) quantum devices simulation.
Selected publications
– Kaya O, Colombo L, Antidormi A, Villena MA, Lanza M, Cole I & Roche S 2024, ´Impact of hydrogenation on the stability and mechanical properties of amorphous boron nitride
´, J. Phys. Mater. 7 025010
– Medina Dueñas J, García JH & Roche S 2024 ´Emerging Spin-Orbit Torques in Low-Dimensional Dirac Materials´
Physical Review Letters 132-26, 266301
– Alcon I, Cummings AW & Roche S 2024, ´Tailoring giant quantum transport anisotropy in disordered nanoporous graphenes
´ Nanoscale Horizons, 9, 407 – 415
– Roche S, van Wees B, Garello K & Valenzuela SO 2024, ‘Spintronics with two-dimensional materials and van der Waals heterostructures‘, 2d materials, 11 – 4 -043001.
– Roche S et al. 2024, ‘Density functional theory and molecular dynamics simulations for resistive switching research‘, Mat.Sci.& Engin.Rep.160 -100825.
– Roche S et al. 2024, ‘Field-Free Spin-Orbit Torque Switching in Janus Chromium Dichalcogenides‘, Nano letters, 24 – 38 – 11889 – 11894.
– Romeral JM, Cummings AW & Roche S 2024, ‘Resilient intraparticle entanglement and its manifestation in spin dynamics of disordered Dirac materials‘, Physical review b, 109 – 17 -174313.
– Roche S et al. 2024, ‘Exploring dielectric properties in atomistic models of amorphous boron nitride‘, Journal of phys.Mat. 7 – 3 – 035003.
– Roche S et al. 2024, ‘Twisting Between Topological Phases in 1D Conjugated Polymers via a Multiradical Transition State‘, Adv.Funct.Mat. 34-49-2409174.
Selected research activities
He is currently involved in the IAM4EU initiative (www.iam-i.eu) and has been appointed by GF to coordinate efforts for promoting the deployment of AI in the innovation processes of advanced materials.
He is Editor in Chief of J. Phys. Materials from IoP and one of the main organizers of key international conference series GRAPHENE 20XX https://www.grapheneconf.com and since QUANTUM MATTER 20XX https://www.quantumconf.eu and AI4AM https://ai4am.net/