@article {1447,
	title = {Enhanced optical conductivity induced by surface states in ABC-stacked few-layer graphene},
	journal = {Physical Review B},
	volume = {83},
	number = {24},
	year = {2011},
	note = {<p>ISI Document Delivery No.: 781LZTimes Cited: 1Cited Reference Count: 41Cited References:      Lui CH, 2011, NANO LETT, V11, P164, DOI 10.1021/nl1032827     Zhang F, 2010, PHYS REV B, V82     Mak KF, 2010, PHYS REV LETT, V104     Norimatsu W, 2010, PHYS REV B, V81     Yang L, 2010, PHYS REV B, V81     Koshino M, 2010, PHYS REV B, V81     Yang L, 2009, PHYS REV LETT, V103     Koshino M, 2009, PHYS REV B, V80     Min H, 2009, PHYS REV LETT, V103     Mak KF, 2009, PHYS REV LETT, V102     Zhang YB, 2009, NATURE, V459, P820     Li ZQ, 2009, PHYS REV LETT, V102     Castro Neto AH, 2009, REV MOD PHYS, V81, P109     Stauber T, 2008, PHYS REV B, V78, DOI 10.1103/PhysRevB.78.085432     Li ZQ, 2008, NAT PHYS, V4, P532, DOI 10.1038/nphys989     Wang F, 2008, SCIENCE, V320, P206, DOI 10.1126/science.1152793     Chen JH, 2008, NAT NANOTECHNOL, V3, P206, DOI 10.1038/nnano.2008.58     Oostinga JB, 2008, NAT MATER, V7, P151, DOI 10.1038/nmat2082     MIN H, 2008, SUPPL PROG THEOR PHY, V176, P227     Casiraghi C, 2007, NANO LETT, V7, P2711, DOI 10.1021/nl071168m     Jiang Z, 2007, PHYS REV LETT, V98     Yan J, 2007, PHYS REV LETT, V98     Aoki M, 2007, SOLID STATE COMMUN, V142, P123, DOI 10.1016/j.ssc.2007.02.013     Manes JL, 2007, PHYS REV B, V75, DOI 10.1103/PhysRevB.75.155424     Geim AK, 2007, NAT MATER, V6, P183, DOI 10.1038/nmat1849     Lu CL, 2006, APPL PHYS LETT, V89, DOI 10.1063/1.2396898     Ohta T, 2006, SCIENCE, V313, P951, DOI 10.1126/science.1130681     Latil S, 2006, PHYS REV LETT, V97, DOI 10.1103/PhysRevLett.97.036803     Guinea F, 2006, PHYS REV B, V73, DOI 10.1103/PhysRevB.73.245426     Lu CL, 2006, PHYS REV B, V73, DOI 10.1103/PhysRevB.73.144427     McCann E, 2006, PHYS REV LETT, V96, DOI 10.1103/PhysRevLett.96.086805     Gajdos M, 2006, PHYS REV B, V73, DOI 10.1103/PhysRevB.73.045112     Novoselov KS, 2005, NATURE, V438, P197, DOI 10.1038/nature04233     Zhang YB, 2005, NATURE, V438, P201, DOI 10.1038/nature04235     Berger C, 2004, J PHYS CHEM B, V108, P19912, DOI 10.1021/jp040650f     Novoselov KS, 2004, SCIENCE, V306, P666, DOI 10.1126/science.1102896     KRESSE G, 1993, PHYS REV B, V47, P558, DOI 10.1103/PhysRevB.47.558     TSUJI M, 1960, REV MOD PHYS, V32, P425, DOI 10.1103/RevModPhys.32.425     Lipson H, 1942, PROC R SOC LON SER-A, V181, P0101, DOI 10.1098/rspa.1942.0063     WANG ZF, ARXIVCONDMAT0703422V     YAN JA, UNPUBYan, Jia-An Ruan, W. Y. Chou, M. Y.US Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering[DEFG02-97ER45632]J.-A.Y. thanks Dr. X. Wang for useful discussions. We acknowledge the support by the US Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering under Award No. DEFG02-97ER45632. Computational resources were provided by the National Energy Research Scientific Computing Center (NERSC).AMER PHYSICAL SOCCOLLEGE PK</p>
},
	month = {Jun},
	pages = {6},
	type = {Article},
	abstract = {<p>The surface states of ABC-stacked few-layer graphene ( FLG) are studied based on density-functional theory. These states form flat bands near the Fermi level, with the k-space range increasing with the layer number. Based on a tight-binding model, the characteristics of these surface states and their evolution with respect to the number of layers are examined. The infrared optical conductivity is then calculated within the single-particle excitation picture. We show that the surface states introduce unique peaks at around 0.3 eV in the optical conductivity spectra of ABC-stacked FLG when the polarization is parallel to the sheets, in good agreement with recent experimental measurement. Furthermore, as the layer number increases, the absorption amplitude is greatly enhanced and the peak position redshifts, which provides a feasible way to identify the number of layers for ABC-stacked FLG using optical conductivity measurements.</p>
},
	keywords = {BILAYER GRAPHENE, DEVICES, DYNAMICS, FIELD, GAS, GRAPHITE},
	isbn = {1098-0121},
	url = {<Go to ISI>://WOS:000291935300011},
	author = {Yan, J. A. and Ruan, W. Y. and Chou, M. Y.}
}
