scholarly journals Exchange, correlation, and scattering effects on surface plasmons in arm-chair graphene nanoribbons

2017 ◽  
Vol 25 (14) ◽  
pp. 16840 ◽  
Author(s):  
M. Brahami ◽  
P. Vasilopoulos
Keyword(s):  
Surface Plasmons ◽  
Graphene Nanoribbons ◽  
Exchange Correlation ◽  
Scattering Effects

scholarly journals Edge and Surface Plasmons in Graphene Nanoribbons

Nano Letters ◽  
2015 ◽  
Vol 15 (12) ◽  
pp. 8271-8276 ◽  
Author(s):  
Z. Fei ◽  
M. D. Goldflam ◽  
J.-S. Wu ◽  
S. Dai ◽  
M. Wagner ◽  
...  
Keyword(s):  
Surface Plasmons ◽  
Graphene Nanoribbons

Nanostructuring of Graphene on Semi-Insulating SiC

2017 ◽  
Vol 897 ◽  
pp. 735-738 ◽  
Author(s):  
Bernd Hähnlein ◽  
Manuela Breiter ◽  
Thomas Stauden ◽  
Jörg Pezoldt
Keyword(s):  
Plasma Etching ◽  
Oxygen Plasma ◽  
Graphene Nanoribbons ◽  
Critical Dimension ◽  
New Approach ◽  
Dimension Measurement ◽  
Scattering Effects ◽  
Back Scattering ◽  
Oxygen Plasma Etching ◽  
Scanning Electron

Epitaxial graphene nanoribbons were fabricated and geometrically measured via scanning electron microscope in the width range of 3...45nm in a new approach. The critical dimension measurement was improved using Monte Carlo simulations for analyzing back scattering effects of the semi-insulating substrate and gaussian convolutions. Different bias powers during oxygen plasma etching allowed the identification of under-etching depths.

Dynamically tuning the optical coupling of surface plasmons in coplanar graphene nanoribbons

2015 ◽  
Vol 352 ◽  
pp. 110-115 ◽  
Author(s):  
Shengxuan Xia ◽  
Xiang Zhai ◽  
Lingling Wang ◽  
Hongju Li ◽  
Zhenrong Huang ◽  
...  
Keyword(s):  
Surface Plasmons ◽  
Graphene Nanoribbons ◽  
Optical Coupling

Edge-Phonon Scattering Effects on Electron Transport of Graphene Nanoribbons

2010 ◽  
Vol 3 (9) ◽  
pp. 095102 ◽  
Author(s):  
Hiroyuki Ishii ◽  
Nobuhiko Kobayashi ◽  
Kenji Hirose
Keyword(s):  
Electron Transport ◽  
Phonon Scattering ◽  
Graphene Nanoribbons ◽  
Scattering Effects

Excitation of surface plasmons in sinusoidally shaped graphene nanoribbons

2016 ◽  
Vol 33 (10) ◽  
pp. 2129 ◽  
Author(s):  
Sheng-Xuan Xia ◽  
Xiang Zhai ◽  
Ling-Ling Wang ◽  
Gui-Dong Liu ◽  
Shuang-Chun Wen
Keyword(s):  
Surface Plasmons ◽  
Graphene Nanoribbons

Electron crystallographic determination of the 3-D structure of staurolite at atomic resolution

1991 ◽  
Vol 49 ◽  
pp. 540-541
Author(s):  
Kenneth H. Downing ◽  
Hu Meisheng ◽  
Hans-Rudolf Went ◽  
Michael A. O'Keefe
Keyword(s):  
High Resolution ◽  
Three Dimensional ◽  
High Resolution Electron Microscopy ◽  
Atomic Resolution ◽  
Dimensional Structure ◽  
Structure Information ◽  
Resolution Electron ◽  
Scattering Effects ◽  
High Resolution Images ◽  
Effects Of Radiation

With current advances in electron microscope design, high resolution electron microscopy has become routine, and point resolutions of better than 2Å have been obtained in images of many inorganic crystals. Although this resolution is sufficient to resolve interatomic spacings, interpretation generally requires comparison of experimental images with calculations. Since the images are two-dimensional representations of projections of the full three-dimensional structure, information is invariably lost in the overlapping images of atoms at various heights. The technique of electron crystallography, in which information from several views of a crystal is combined, has been developed to obtain three-dimensional information on proteins. The resolution in images of proteins is severely limited by effects of radiation damage. In principle, atomic-resolution, 3D reconstructions should be obtainable from specimens that are resistant to damage. The most serious problem would appear to be in obtaining high-resolution images from areas that are thin enough that dynamical scattering effects can be ignored.

Inelastic scattering at surfaces and interfaces

1986 ◽  
Vol 44 ◽  
pp. 392-393
Author(s):  
R. H. Ritchie ◽  
A. Howie
Keyword(s):  
Inelastic Scattering ◽  
Surface Properties ◽  
Correlation Energy ◽  
Condensed Matter ◽  
Charged Particles ◽  
Condensed Matter Physics ◽  
Optical Phonons ◽  
Exchange Correlation ◽  
Surfaces And Interfaces ◽  
Inelastic Interactions

An important part of condensed matter physics in recent years has involved detailed study of inelastic interactions between swift electrons and condensed matter surfaces. Here we will review some aspects of such interactions.Surface excitations have long been recognized as dominant in determining the exchange-correlation energy of charged particles outside the surface. Properties of surface and bulk polaritons, plasmons and optical phonons in plane-bounded and spherical systems will be discussed from the viewpoint of semiclassical and quantal dielectric theory. Plasmons at interfaces between dissimilar dielectrics and in superlattice configurations will also be considered.

Dynamical Scattering in Electron Diffraction of wet Protein Crystals

1980 ◽  
Vol 38 ◽  
pp. 42-43
Author(s):  
B. B. Chang ◽  
D. F. Parsons
Keyword(s):  
Electron Diffraction ◽  
Scattering Theory ◽  
Protein Crystals ◽  
Electron Diffraction Data ◽  
Specimen Thickness ◽  
Major Question ◽  
X Ray ◽  
Scattering Effects ◽  
Diffraction Patterns ◽  
Acceleration Voltage

The significance of dynamical scattering effects remains the major question in the structural analysis by electron diffraction of protein crystals preserved in the hydrated state. In the few cases (single layers of purple membrane and 400-600 Å thick catalase crystals examined at 100 kV acceleration voltage) where electron-diffraction patterns were used quantitatively, dynamical scattering effects were considered unimportant on the basis of a comparison with x-ray intensities. The kinematical treatment is usually justified by the thinness of the crystal. A theoretical investigation by Ho et al. using Cowley-Moodie multislice formulation of dynamical scattering theory and cytochrome b5as the test object2 suggests that kinematical analysis of electron diffraction data with 100-keV electrons would not likely be valid for specimen thickness of 300 Å or more. We have chosen to work with electron diffraction patterns obtained from actual wet protein crystals (rat hemoglobin crystals of thickness range 1000 to 2500 Å) at 200 and 1000 kV and to analyze these for dynamical effects.

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