Přednášející: Iván Brihuega (Dept. de Física de la Materia Condensada, Universidad Autónoma de Madrid, Madrid, Spain)
Místo: Cukrovarnická 10, knihovna, budova A, 1. patro
Jazyk: anglicky
Pořadatelé:
Oddělení tenkých vrstev a nanostruktur
In 2004 graphene ceased being a theoretical chimera to become the object of desire of the scientific community. In just few years, extraordinary properties have being demonstrated and many others are emerging as a result of the tremendous experimental and theoretical efforts devoted to this material. In this talk I will show how we use a scanning tunneling microscope to explore and manipulate graphene physics at an atomic level. I will mainly concentrate in two topics:
The investigation, at the atomic scale, of the impact that point defects like vacancies or atomic H have in the structural, electronic and magnetic properties of graphene layers grown on different substrates, where the pure bidimensionality of graphene gives to these atomic defects a critical role [1-3].
The study of the coupling of graphene with its local environment and how this affects to graphene’s quasiparticle dispersion, pseudospin, van Hove singularities..., which is absolutely critical to be able to integrate it in tomorrow's electronic devices [4-8].
[1] M. Ugeda, I. Brihuega, F. Guinea and J. M. Gómez-Rodríguez, Phys. Rev. Lett 104, 096804 (2010)
[2] M. M. Ugeda, et al. , Phys. Rev. Lett 107, 116803 (2011)
[3] M.M. Ugeda, et al. Phys Rev. B, 85, 121402 (R) (2012)
[4] I. Brihuega, et al. Phys. Rev. Lett. 101, 206802 (2008)
[5] P. Mallet, et al.. Phys Rev.. 86, 045444 (2012)
[6] A.J. Martínez-Galera, I. Brihuega and J. M. Gómez-Rodríguez, Nano Letters 11, 3576 (2011)
[7] I. Brihuega, et al., Phys. Rev. Lett. 109, 196802 (2012)
[8] A.J. Martínez-Galera, et al., Scientific Reports 4, 7314 (2014)
Copyright © 2008-2014, Fyzikální ústav AV ČR, v. v. i.
