@article{26e086f9f709480ea3761389641e982d,
title = "Band structure mapping of bilayer graphene via quasiparticle scattering",
abstract = "A perpendicular electric field breaks the layer symmetry of Bernal-stacked bilayer graphene, resulting in the opening of a band gap and a modification of the effective mass of the charge carriers. Using scanning tunneling microscopy and spectroscopy, we examine standing waves in the local density of states of bilayer graphene formed by scattering from a bilayer/trilayer boundary. The quasiparticle interference properties are controlled by the bilayer graphene band structure, allowing a direct local probe of the evolution of the band structure of bilayer graphene as a function of electric field. We extract the Slonczewski-Weiss-McClure model tight binding parameters as γ0 = 3.1 eV, γ1 = 0.39 eV, and γ4 = 0.22 eV.",
author = "Matthew Yankowitz and Wang, {Joel I.Jan} and Suchun Li and Birdwell, {A. Glen} and Chen, {Yu An} and Kenji Watanabe and Takashi Taniguchi and Quek, {Su Ying} and Pablo Jarillo-Herrero and LeRoy, {Brian J.}",
note = "Funding Information: M.Y. and B.J.L. were supported by the U.S. Army Research Laboratory and the U.S. Army Research Office under Contract/Grant No. W911NF-09-1-0333 and the National Science Foundation CAREER award DMR-0953784. J.I-J.W. was partially supported by a Taiwan Merit Scholarship TMS-094-1-A-001. J.I.-J.W and P.J.-H. have been primarily supported by the US DOE, BES Office, Division of Materials Sciences and Engineering under Award DE-SC0001819. Early fabrication feasibility studies were supported by NSF Career Award No. DMR-0845287 and the ONR GATE MURI. This work made use of the MRSEC Shared Experimental Facilities supported by NSF under Award No. DMR-0819762 and of Harvard's CNS, supported by NSF under Grant No. ECS-0335765. A.G.B. was supported by the U.S. Army Research Laboratory (ARL) Director's Strategic Initiative program on interfaces in stacked 2D atomic layered materials. S.L. is supported by the A∗STAR Graduate Scholarship. S.Y.Q. is supported by the IHPC Independent Investigatorship and Singapore NRF Fellowship (NRF-NRFF2013-07). We thank NUS Graphene Research Centre, A∗CRC, and Professor Feng Yuan Ping's Lab in NUS for computational support. Funding Information: M.Y. and B.J.L. were supported by the U.S. Army Research Laboratory and the U.S. Army Research Office under Contract/Grant No. W911NF-09-1-0333 and the National Science Foundation CAREER award DMR-0953784. J.I-J.W. was partially supported by a Taiwan Merit Scholarship TMS-094-1-A-001. J.I.-J.W and P.J.-H. have been primarily supported by the US DOE, BES Office, Division of Materials Sciences and Engineering under Award DE-SC0001819. Early fabrication feasibility studies were supported by NSF Career Award No. DMR-0845287 and the ONR GATE MURI. This work made use of the MRSEC Shared Experimental Facilities supported by NSF under Award No. DMR-0819762 and of Harvard{\textquoteright}s CNS, supported by NSF under Grant No. ECS-0335765. A.G.B. was supported by the U.S. Army Research Laboratory (ARL) Director{\textquoteright}s Strategic Initiative program on interfaces in stacked 2D atomic layered materials. S.L. is supported by the A*STAR Graduate Scholarship. S.Y.Q. is supported by the IHPC Independent Investigatorship and Singapore NRF Fellowship (NRF-NRFF2013-07). We thank NUS Graphene Research Centre, A*CRC, and Professor Feng Yuan Ping{\textquoteright}s Lab in NUS for computational support. Publisher Copyright: {\textcopyright} 2014 Author(s).",
year = "2014",
month = sep,
doi = "10.1063/1.4890543",
language = "English (US)",
volume = "2",
journal = "APL Materials",
issn = "2166-532X",
publisher = "American Institute of Physics",
number = "9",
}