Title :
Multi-component response in multilayer graphene revealed through terahertz and infrared magneto-spectroscopy
Author :
Ellis, C.T. ; Stier, A.V. ; George, D. ; Tischler, J.G. ; Glaser, E.R. ; Myers-Ward, R.L. ; Tedesco, J.L. ; Eddy, C.R., Jr. ; Gaskill, D.K. ; Markelz, A. ; Cerne, J.
Author_Institution :
Dept. of Phys., SUNY - Univ. at Buffalo, Buffalo, NY, USA
Abstract :
In this work we present mid-infrared (114 meV-224 meV) polarization-sensitive measurements on multilayer epitaxial graphene, which reveal graphene´s rich and complex cyclotron resonant (CR) structure. By using Fourier transform Kerr spectroscopy we are able to separate and identify cyclotron resonances from graphene multilayers with various stacking orders and thicknesses. Moreover, from the identification of the layers present and their measured fundamental band parameters we are able to use these results to better understand previously unexplained CR features in far-infrared (0.1 meV - 87 meV) transmission measurements performed on the same sample.
Keywords :
Fourier transform spectra; Kerr magneto-optical effect; cyclotron resonance; epitaxial layers; graphene; infrared spectra; magneto-optical effects; multilayers; terahertz wave spectra; C; Fourier transform Kerr spectroscopy; complex cyclotron resonant structure; electron volt energy 0.1 MeV to 87 MeV; electron volt energy 114 MeV to 224 MeV; far-infrared transmission measurement; infrared magneto-spectroscopy; midinfrared magneto optical Kerr effect; multicomponent response; multilayer epitaxial graphene; polarization-sensitive measurements; stacking orders; terahertz magnetospectroscopy; Absorption; Finite impulse response filter; Magnetic field measurement; Magnetic multilayers; Nonhomogeneous media; Spectroscopy;
Conference_Titel :
Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2012 37th International Conference on
Conference_Location :
Wollongong, NSW
Print_ISBN :
978-1-4673-1598-2
Electronic_ISBN :
2162-2027
DOI :
10.1109/IRMMW-THz.2012.6380102
