Prof. Ivan Brihuega, Department of Condensed Matter Physics, Universidad Autónoma de Madrid, Spain

Nanoscale control of new properties added to graphene: Superconductivity, Magnetism and Electronic Gap

At present, we have a very high level of understanding of the inherent properties of graphene. This means that we are now in a position to go one-step further and try to add and take advantage of some of the few properties not naturally found in graphene, such as the existence of magnetic moments, gaps in the band structure or superconducting properties. In this talk I will show how we incorporate those properties to graphene, and how we control them at the nanoscale by using STM as main experimental tool. More specifically, we use quantum confinement to selectively introduce gaps in graphene’s electronic band structure [1], atomic H as building blocks to incorporate magnetic moments [2] and Pb islands to induce superconductivity by the proximity effect [3]. In addition, I will show how we use quasiparticle interference patterns to probe graphene topological properties [4].


[1] E. Cortés‐del Río, P. Mallet, H. González‐Herrero, JL.Lado, J. Fernández‐Rossier, JM Gómez‐Rodríguez, JY Veuillen, I Brihuega, Advanced Materials, 32, 2001119 (2020)

[2] H. González-Herrero, JM Gómez-Rodríguez, P. Mallet, M. Moaied, JJ Palacios, C Salgado, MM Ugeda, JY. Veuillen, F Ynduráin and I Brihuega, Science 352, 437 (2016)

[3] E. Cortés-del Río, JL Lado, V Cherkez, P Mallet, JY Veuillen, JC Cuevas, JM Gómez-Rodríguez, J Fernández-Rossier, I Brihuega, Advanced Materials, 33, 2008113 (2021)

[4] C. Dutreix, H. González-Herrero, I. Brihuega, M I. Katsnelson, C. Chapelier & VT. Renard. Nature, 574, 219 (2019)