Title :
Observation of image states in graphene on Ir(111) by two-photon photoemission
Author :
Dadap, Jerry I. ; Kralj, Marko ; Petrovic, Marin ; Knox, Kevin R. ; Bhandari, Rohan ; Po-Chun Yen ; Zaki, Nader ; Osgood, Richard M., Jr.
Author_Institution :
Microelectron. Sci. Labs., Columbia Univ., New York, NY, USA
Abstract :
We report observation of image states of graphene on Ir(111) using two-photon photoemission (2PPE). We also investigate the 2PPE dependence on graphene coverage, photon energy, and electron scattering angle to study the graphene-substrate interaction.
Keywords :
graphene; iridium; molecule-surface impact; photoelectron spectra; two-photon spectra; 2PPE dependence; C; Ir; Ir(111); electron scattering angle; graphene coverage; graphene-substrate interaction; image states; photon energy; two-photon photoemission; Crystals; Nonlinear optics; Optical surface waves; Photoelectricity; Photonics; Scattering; Surface waves;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2011 Conference on
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-4577-1223-4
