Optical studies of graphene under acoustic waves

• Grant number: 14/24732-3
• Support Opportunities: Scholarships abroad - Research
• Start date: May 01, 2015
• End date: August 31, 2015
• Field of knowledge: Physical Sciences and Mathematics - Physics - Condensed Matter Physics
• Principal Investigator: Fernando Iikawa
• Grantee: Fernando Iikawa
• Host Investigator: Paulo Ventura Santos
• Host Institution: Instituto de Física Gleb Wataghin (IFGW). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil
• Institution abroad: Paul-Drude-Institut für Festkörperelektronik (PDI), Germany

Abstract

The atomically thin two-dimensional crystal named graphene exhibits robust and extraordinary properties, such as quantum Hall effect at room temperature, high thermal conductivity, as well as one of the highest stiffness constants. Despite the gapless Dirac energy dispersion of the p-band, optical techniques have been intensively used for its investigation. This project will explore optical techniques (such as hot-photoluminescence, magneto-Kerr effect and Raman scattering) to address the interaction of carriers in epitaxial graphene, grown on SiC substrate, with surface acoustic waves. This interaction can be used to modulate the carrier density as well as to transport carriers and spins in graphene (AU)