Edge states and ballistic transport in zigzag graphene ribbons: The role of SiC polytypes

Miettinen, Anna L.; Nevius, M. S.; Ko, Wonhee; Kolmer, Marek A.; Li, An -Ping; Nair, M. N.; Kierren, B.; Moreau, L.; Conrad, Edward H.; Tejeda, A.

doi:10.1103/PhysRevB.100.045425

Title: Edge states and ballistic transport in zigzag graphene ribbons: The role of SiC polytypes

Journal Article · 30 July 2019 · Physical Review B

DOI: https://doi.org/10.1103/PhysRevB.100.045425 · OSTI ID:1560407

Miettinen, Anna L. ^[1]; Nevius, M. S. ^[1];

^[2];

^[2]; Nair, M. N. ^[3]; Kierren, B. ^[4]; Moreau, L. ^[4]; Conrad, Edward H. ^[1]; Tejeda, A. ^[5]

The Georgia Inst. of Technology, Atlanta, GA (United States)
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Synchrotron SOLEIL, Gif-sur-Yvette (France)
CNRS-Univ. de Lorraine, Vandoeuvre les Nancy (France)
Univ. Paris-Sud, Orsay Cedex (France); Synchrotron SOLEIL, Gif sur Yvette (France)

Zigzag-edge graphene sidewall ribbons grown on 6H-SiC {11¯2n} facet walls are ballistic conductors. Here, it is assumed that graphene sidewall ribbons grown on 4H-SiC {11¯2n} facets would also be ballistic. In this work, we show that SiC polytype indeed matters: ballistic sidewall graphene ribbons only grow on 6H-SiC facets. 4H and 4H-passivated sidewall graphene ribbons are diffusive conductors. Detailed photoemission and microscopy studies show that 6H-SiC sidewall zigzag ribbons are metallic with a pair of n-doped edge states associated with asymmetric edge terminations. In contrast, 4H-SiC zigzag ribbons are strongly bonded to the SiC, severely distorting the ribbon's π bands. H₂ passivation of the 4H ribbons returns them to a metallic state but they show no evidence of edge states in their photoemission-derived band structure.

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Research Organization:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Basic Energy Sciences (BES); USDOE

Grant/Contract Number:: AC05-00OR22725

OSTI ID:: 1560407

Alternate ID(s):: OSTI ID: 1545954

Journal Information:: Physical Review B, Vol. 100, Issue 4; ISSN 2469-9950

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

References (41)

Large area and structured epitaxial graphene produced by confinement controlled sublimation of silicon carbide de Heer, W. A.; Berger, C.; Ruan, M. Proceedings of the National Academy of Sciences, Vol. 108, Issue 41 https://doi.org/10.1073/pnas.1105113108	journal	September 2011
Energy Gaps in Graphene Nanoribbons Son, Young-Woo; Cohen, Marvin L.; Louie, Steven G. Physical Review Letters, Vol. 97, Issue 21 https://doi.org/10.1103/PhysRevLett.97.216803	journal	November 2006
Electronic structures of zigzag graphene nanoribbons with edge hydrogenation and oxidation Lee, Geunsik; Cho, Kyeongjae Physical Review B, Vol. 79, Issue 16 https://doi.org/10.1103/PhysRevB.79.165440	journal	April 2009
Wide Band Gap Semiconductor from a Hidden 2D Incommensurate Graphene Phase Conrad, Matthew; Wang, Feng; Nevius, Meredith Nano Letters, Vol. 17, Issue 1 https://doi.org/10.1021/acs.nanolett.6b04196	journal	December 2016
Chemically Resolved Interface Structure of Epitaxial Graphene on SiC(0001) Emery, Jonathan D.; Detlefs, Blanka; Karmel, Hunter J. Physical Review Letters, Vol. 111, Issue 21 https://doi.org/10.1103/PhysRevLett.111.215501	journal	November 2013
Approaching Truly Freestanding Graphene: The Structure of Hydrogen-Intercalated Graphene on 6 H − SiC ( 0001 ) Sforzini, J.; Nemec, L.; Denig, T. Physical Review Letters, Vol. 114, Issue 10 https://doi.org/10.1103/PhysRevLett.114.106804	journal	March 2015
Edge-states in graphene nanoribbons: a combined spectroscopy and transport study Baringhaus, Jens; Edler, Frederik; Tegenkamp, Christoph Journal of Physics: Condensed Matter, Vol. 25, Issue 39 https://doi.org/10.1088/0953-8984/25/39/392001	journal	August 2013
Exceptional ballistic transport in epitaxial graphene nanoribbons Baringhaus, Jens; Ruan, Ming; Edler, Frederik Nature, Vol. 506, Issue 7488 https://doi.org/10.1038/nature12952	journal	February 2014
Quasi-Free-Standing Epitaxial Graphene on SiC Obtained by Hydrogen Intercalation Riedl, C.; Coletti, C.; Iwasaki, T. Physical Review Letters, Vol. 103, Issue 24 https://doi.org/10.1103/PhysRevLett.103.246804	journal	December 2009
Spin filter effects in zigzag-edge graphene nanoribbons with symmetric and asymmetric edge hydrogenations Deng, X. Q.; Zhang, Z. H.; Tang, G. P. Carbon, Vol. 66 https://doi.org/10.1016/j.carbon.2013.09.061	journal	January 2014
Interacting quantum box superlattice by self-organized Co nanodots on Au(788) Didiot, C.; Tejeda, A.; Fagot-Revurat, Y. Physical Review B, Vol. 76, Issue 8 https://doi.org/10.1103/PhysRevB.76.081404	journal	August 2007
Magnetization due to localized states on graphene grain boundary Dutta, Sudipta; Wakabayashi, Katsunori Scientific Reports, Vol. 5, Issue 1 https://doi.org/10.1038/srep11744	journal	July 2015
Semiconducting Graphene from Highly Ordered Substrate Interactions Nevius, M. S.; Conrad, M.; Wang, F. Physical Review Letters, Vol. 115, Issue 13 https://doi.org/10.1103/PhysRevLett.115.136802	journal	September 2015
Quantum Dot Behavior in Graphene Nanoconstrictions Todd, Kathryn; Chou, Hung-Tao; Amasha, Sami Nano Letters, Vol. 9, Issue 1 https://doi.org/10.1021/nl803291b	journal	January 2009
A wide-bandgap metal–semiconductor–metal nanostructure made entirely from graphene Hicks, J.; Tejeda, A.; Taleb-Ibrahimi, A. Nature Physics, Vol. 9, Issue 1 https://doi.org/10.1038/nphys2487	journal	November 2012
Electron Transport at the Nanometer-Scale Spatially Revealed by Four-Probe Scanning Tunneling Microscopy Li, An-Ping; Clark, Kendal W.; Zhang, X. -G. Advanced Functional Materials, Vol. 23, Issue 20 https://doi.org/10.1002/adfm.201203423	journal	March 2013
Electron Transport in Disordered Graphene Nanoribbons Han, Melinda Y.; Brant, Juliana C.; Kim, Philip Physical Review Letters, Vol. 104, Issue 5 https://doi.org/10.1103/PhysRevLett.104.056801	journal	February 2010
The Bottom-up Growth of Edge Specific Graphene Nanoribbons Nevius, M. S.; Wang, F.; Mathieu, C. Nano Letters, Vol. 14, Issue 11 https://doi.org/10.1021/nl502942z	journal	October 2014
Effect of process variations and ambient temperature on electron mobility at the SiO/sub 2//4H-SiC interface IEEE Transactions on Electron Devices, Vol. 50, Issue 7 https://doi.org/10.1109/TED.2003.814974	journal	July 2003
A cryogenic Quadraprobe scanning tunneling microscope system with fabrication capability for nanotransport research Kim, Tae-Hwan; Wang, Zhouhang; Wendelken, John F. Review of Scientific Instruments, Vol. 78, Issue 12 https://doi.org/10.1063/1.2821610	journal	December 2007
Quasiparticle Energies and Band Gaps in Graphene Nanoribbons Yang, Li; Park, Cheol-Hwan; Son, Young-Woo Physical Review Letters, Vol. 99, Issue 18 https://doi.org/10.1103/PhysRevLett.99.186801	journal	November 2007
Electronic states of graphene nanoribbons and analytical solutions Wakabayashi, Katsunori; Sasaki, Ken-ichi; Nakanishi, Takeshi Science and Technology of Advanced Materials, Vol. 11, Issue 5 https://doi.org/10.1088/1468-6996/11/5/054504	journal	October 2010
Structure and evolution of semiconducting buffer graphene grown on SiC(0001) Conrad, M.; Rault, J.; Utsumi, Y. Physical Review B, Vol. 96, Issue 19 https://doi.org/10.1103/PhysRevB.96.195304	journal	November 2017
Edge state in graphene ribbons: Nanometer size effect and edge shape dependence Nakada, Kyoko; Fujita, Mitsutaka; Dresselhaus, Gene Physical Review B, Vol. 54, Issue 24 https://doi.org/10.1103/PhysRevB.54.17954	journal	December 1996
Brillouin-zone-selection effects in graphite photoelectron angular distributions Shirley, Eric L.; Terminello, L. J.; Santoni, A. Physical Review B, Vol. 51, Issue 19 https://doi.org/10.1103/PhysRevB.51.13614	journal	May 1995
The influence of edge structure on the electronic properties of graphene quantum dots and nanoribbons Ritter, Kyle A.; Lyding, Joseph W. Nature Materials, Vol. 8, Issue 3 https://doi.org/10.1038/nmat2378	journal	February 2009
Interaction, growth, and ordering of epitaxial graphene on SiC{0001} surfaces: A comparative photoelectron spectroscopy study Emtsev, K. V.; Speck, F.; Seyller, Th. Physical Review B, Vol. 77, Issue 15 https://doi.org/10.1103/PhysRevB.77.155303	journal	April 2008
Symmetry breaking in few layer graphene films Bostwick, Aaron; Ohta, Taisuke; McChesney, Jessica L. New Journal of Physics, Vol. 9, Issue 10 https://doi.org/10.1088/1367-2630/9/10/385	journal	October 2007
Emergence of magnetism in graphene materials and nanostructures Yazyev, Oleg V. Reports on Progress in Physics, Vol. 73, Issue 5 https://doi.org/10.1088/0034-4885/73/5/056501	journal	April 2010
Quasiparticle dynamics in graphene Bostwick, Aaron; Ohta, Taisuke; Seyller, Thomas Nature Physics, Vol. 3, Issue 1 https://doi.org/10.1038/nphys477	journal	December 2006
Atomic Structure of Epitaxial Graphene Sidewall Nanoribbons: Flat Graphene, Miniribbons, and the Confinement Gap Palacio, Irene; Celis, Arlensiú; Nair, Maya N. Nano Letters, Vol. 15, Issue 1 https://doi.org/10.1021/nl503352v	journal	December 2014
Coulomb Blockade in Graphene Nanoribbons Sols, F.; Guinea, F.; Neto, A. H. Castro Physical Review Letters, Vol. 99, Issue 16 https://doi.org/10.1103/PhysRevLett.99.166803	journal	October 2007
Ultrathin Epitaxial Graphite: 2D Electron Gas Properties and a Route toward Graphene-based Nanoelectronics Berger, Claire; Song, Zhimin; Li, Tianbo The Journal of Physical Chemistry B, Vol. 108, Issue 52, p. 19912-19916 https://doi.org/10.1021/jp040650f	journal	December 2004
Scalable templated growth of graphene nanoribbons on SiC Sprinkle, M.; Ruan, M.; Hu, Y. Nature Nanotechnology, Vol. 5, Issue 10 https://doi.org/10.1038/nnano.2010.192	journal	October 2010
Electronic structure and magnetic properties of graphitic ribbons Pisani, L.; Chan, J. A.; Montanari, B. Physical Review B, Vol. 75, Issue 6 https://doi.org/10.1103/PhysRevB.75.064418	journal	February 2007
Band Gap Opening Induced by the Structural Periodicity in Epitaxial Graphene Buffer Layer N. Nair, Maya; Palacio, Irene; Celis, Arlensiú Nano Letters, Vol. 17, Issue 4 https://doi.org/10.1021/acs.nanolett.7b00509	journal	March 2017
Carrier density and magnetism in graphene zigzag nanoribbons Jung, J.; MacDonald, A. H. Physical Review B, Vol. 79, Issue 23 https://doi.org/10.1103/PhysRevB.79.235433	journal	June 2009
Ballistic tracks in graphene nanoribbons Aprojanz, Johannes; Power, Stephen R.; Bampoulis, Pantelis Nature Communications, Vol. 9, Issue 1 https://doi.org/10.1038/s41467-018-06940-5	journal	October 2018
Equilibrium crystal shapes for 6H AND 4H SiC grown on non-planar substrates Nordell, N.; Karlsson, S.; Konstantinov, A. O. Materials Science and Engineering: B, Vol. 61-62 https://doi.org/10.1016/S0921-5107(98)00485-1	journal	July 1999
Structural properties of the graphene-SiC(0001) interface as a key for the preparation of homogeneous large-terrace graphene surfaces Riedl, C.; Starke, U.; Bernhardt, J. Physical Review B, Vol. 76, Issue 24 https://doi.org/10.1103/PhysRevB.76.245406	journal	December 2007
Conductance quantization and transport gaps in disordered graphene nanoribbons Mucciolo, E. R.; Castro Neto, A. H.; Lewenkopf, C. H. Physical Review B, Vol. 79, Issue 7 https://doi.org/10.1103/PhysRevB.79.075407	journal	February 2009