Electronic States and Local Density of States in Graphene with a Corner Edge Structure
نویسندگان
چکیده
منابع مشابه
Local density of states and scanning tunneling currents in graphene
We present exact analytical calculations of scanning tunneling currents in locally disordered graphene using a multimode description of the microscope tip. Analytical expressions for the local density of states (LDOS) are given for energies beyond the Dirac cone approximation. We show that the LDOS at the A and B sublattices of graphene are out of phase by π implying that the averaged LDOS, as ...
متن کاملStructure, stability, edge states, and aromaticity of graphene ribbons.
We determine the stability, the geometry, the electronic, and magnetic structure of hydrogen-terminated graphene-nanoribbon edges as a function of the hydrogen content of the environment by means of density functional theory. Antiferromagnetic zigzag ribbons are stable only at extremely low ultravacuum pressures. Under more standard conditions, the most stable structures are the mono- and dihyd...
متن کاملElectron states near graphene edge
The band structure of graphene near the Fermi surface is often well described by the effective mass approximation. In this approach electron wave function obeys the Diractype equation. To describe a number of effects it is necessary to supplement the equation with boundary conditions. Using the Hermiticity and the time reversal symmetry we derive the phenomenological boundary conditions for a m...
متن کاملStability of edge states and edge magnetism in graphene nanoribbons
Jens Kunstmann,1,* Cem Özdoğan,2 Alexander Quandt,3,4 and Holger Fehske3 1Institute for Materials Science, TU Dresden, Hallwachstr. 3, D-01069 Dresden, Germany 2Department of Materials Science and Engineering, Çankaya University, Balgat, TR-06530 Ankara, Turkey 3Institut für Physik der Universität Greifswald, Felix–Hausdorff-Str. 6, D-17489 Greifswald, Germany 4School of Physics and DST/NRF Cen...
متن کاملLocal density of states of chiral Hall edge states in gyrotropic photonic clusters
Ara A. Asatryan,1,* Lindsay C. Botten,2 Kejie Fang,3 Shanhui Fan,3 and Ross C. McPhedran4 1Department of Mathematical Sciences, University of Technology, Sydney NSW 2007, Australia 2Department of Mathematical Sciences and the Centre for Ultrahigh-bandwidth Devices for Optical Systems (CUDOS), University of Technology, Sydney NSW 2007, Australia 3Department of Electrical Engineering, Stanford Un...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of the Physical Society of Japan
سال: 2011
ISSN: 0031-9015,1347-4073
DOI: 10.1143/jpsj.80.054710