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Seminar

From Raman characterization to novel laser-induced topological phases in graphene

Wednesday, 21 October 2015, 13:30-15:00
Institute of Nanotechnology Seminar room 0-167
Talk given by Dr. Luis F. E. Torres CONICET and Universidad Nacional de Córdoba, Argentina Abstract: Graphene offers a plethora of outstanding physical properties. Many tools are being actively developed either to achieve a better characterization of this material, or to grant custom properties. In this talk I will address two examples on how light can be harnessed to pursue both aims. In the first part, I will show how Raman spectroscopy can be used to unveil important information about the defects in liquid phase exfoliated graphene [1]. In the second part, I will focus on a theoretical proposal for using intense lasers for achieving novel topological phases [2,3,4], namely a Floquet topological insulator. [1] M. V. Bracamonte, G. I. Lacconi, S. Urreta, L. E. F. Foa Torres, Journal of Physical Chemistry C 118, 15455 (2014). [2] P. M. Perez-Piskunow, G. Usaj, C. A. Balseiro, and L. E. F. Foa Torres, Physical Review B, 89, 121401(R) (2014). [3] G. Usaj, P. M. Perez-Piskunow, L. E. F. Foa Torres, C. A. Balseiro, Physical Review B, 90, 115423 (2014). [4] L. E. F. Foa Torres, P. M. Perez-Piskunow, C. A. Balseiro, and G. Usaj, Physical Review Letters 113, 266801 (2014). Related publications and updates available at http://nanocarbon.famaf.unc.edu.ar/
This event is part of the eventgroup INT Talks
Speaker
Dr. Luis F. E. Torres

CONICET and Universidad Nacional de Córdoba, Argentina
http://nanocarbon.famaf.unc.edu.ar/
Organizer
Dr. Igor Gornyi
Institute of Nanotechnology (INT)
Karlsruhe Institute of Technology (KIT)
Eggenstein-Leopoldshafen
Mail: igor gornyi does-not-exist.kit edu
Targetgroup
Interested / Everyone
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