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Search for "moiré" in Full Text gives 33 result(s) in Beilstein Journal of Nanotechnology.
Cathode lens spectromicroscopy: methodology and applications
Beilstein J. Nanotechnol. 2014, 5, 1873–1886, doi:10.3762/bjnano.5.198
- instance, μ-LEED methods have been devised to quantify the short-range roughness of multi-thickness SiO2-supported and suspended exfoliated graphene films [43]. To date, the most frequent application of LEEM/LEED has been the study of rotational domains and complex moiré patterns in a wide variety of
- graphene epilayers. A notable example is that of graphene on Re(0001), in which a moiré cell made out of (10 × 10) graphene unit cells over (9 × 9) Re unit cells was determined in a μ-LEED experiment performed in a SPELEEM microscope; the atomic positions in the unit cell were subsequently obtained by
- for graphene on Pt(111) and Ir(111) surfaces [61][62]. Importantly, no coincidence structures are observed in the LEED pattern, which exhibits only the first order graphene spots plus an extremely week moiré structure, identical to that observed on the flat phase of graphene on Ir(100). This finding
Interaction of iron phthalocyanine with the graphene/Ni(111) system
Beilstein J. Nanotechnol. 2014, 5, 308–312, doi:10.3762/bjnano.5.34
- 1. The corresponding LEED patterns are shown in the insets: for Gr/Ni(111) the graphene lattice is well aligned with the substrate and no corrugation is present, with a resulting (1 × 1) symmetry [21][22], while in Gr/Ir(111) the lattice mismatch, reflected in the additional moiré pattern
Routes to rupture and folding of graphene on rough 6H-SiC(0001) and their identification
Beilstein J. Nanotechnol. 2013, 4, 625–631, doi:10.3762/bjnano.4.69
- velocity renormalization for smaller rotation angles [8][9][10][11]. For very small rotation angles, θ ≤ 2°, the electronic properties are found to be coupled to the resulting moiré spots for twisted BLG [10]. In order to study these properties experimentally, (few layer) graphene can be produced in
Electronic and transport properties of kinked graphene
Beilstein J. Nanotechnol. 2013, 4, 103–110, doi:10.3762/bjnano.4.12
- at the adsorption sites due to sp3 hybridisation [5]. Periodically ordered clusters of adsorbed hydrogen can be formed on graphene in patterns dictated by the Moiré lattice mismatch between graphene and the metal substrate, which opens a semiconducting band gap [6]. Finally, regular perforations
Graphite, graphene on SiC, and graphene nanoribbons: Calculated images with a numerical FM-AFM
Beilstein J. Nanotechnol. 2012, 3, 301–311, doi:10.3762/bjnano.3.34
- corrugation of the moiré patterns is an interesting system for the n-AFM. We performed FM-AFM calculations at constant height with Hset = 3.8 Å and at constant frequency shift with Δfset = −12.5 Hz after relaxation of the graphene layer on SiC. The results are presented in Figure 3b and Figure 3c
Dipole-driven self-organization of zwitterionic molecules on alkali halide surfaces
Beilstein J. Nanotechnol. 2012, 3, 285–293, doi:10.3762/bjnano.3.32
- , the molecules assemble into a well-organized quadratic lattice, which is perfectly aligned with the <110> directions of the substrate surface (i.e., rows of equal charges) and which produces a Moiré pattern due to coincidences with the substrate lattice constant. Second, at low coverage, we observe
- of MSPS (≈120 °C) that large-scale ordering of MSPS into rectangular islands is observed (Figure 2b). These islands are all oriented along the direction of the substrate (see inset of Figure 2b for substrate orientation) and show a regular, quadratic Moiré pattern, several nanometers large, parallel
- create atomic-scale defects (see for example the upper part of Figure 3b). For a detailed investigation of the lattice parameters of both the molecular protrusions in the MSPS islands and the Moiré pattern respectively, we proceeded as follows: first, atomic-resolution images of the substrate surface
Modeling noncontact atomic force microscopy resolution on corrugated surfaces
Beilstein J. Nanotechnol. 2012, 3, 230–237, doi:10.3762/bjnano.3.26
- presented by Sun et. al in describing the attenuation in the graphene moiré structure on Ir(111) due to the vdW interaction between the tip and the underlying Ir(111) structure [29]. While attenuation is to be expected for increased distance between the tip and the sample, we emphasize that the degree of
Intermolecular vs molecule–substrate interactions: A combined STM and theoretical study of supramolecular phases on graphene/Ru(0001)
Beilstein J. Nanotechnol. 2011, 2, 365–373, doi:10.3762/bjnano.2.42
- exclusively populated the areas between the maxima of the moiré structure of the buckled graphene layer. The consequences for the competing intermolecular interactions and corrugation in the adsorption potential are discussed and compared with the theoretical results. Keywords: graphene film; intermolecular
- exhibit a lateral corrugation of 30 Å, which is comparable with the outer dimensions of the molecules used in this study. Representative images of the graphene/Ru(0001) surface presented in Figure 1 underline the highly ordered long-range periodicity of the graphene adlayer with its characteristic moiré
- pattern (Figure 1a) and resolve the atomic structure in the high resolution image (Figure 1b). In the latter image, two different areas are marked, denoting the positions on top of the maxima of the moiré lattice of the graphene film (“hill positions” - H) and the lower parts between the maxima (“valley
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