Results 261 to 270 of about 109,910 (319)

Structure and growth of crystalline superlattices: From monolayer to superlattice

Physical Review B, 1986
We discuss the physical phenomena fundamental to the understanding of the structure and growth of crystalline superlattices: (i) the growth mode as determined by surface energies, supersaturation, and lattice misfit; and (ii) the dependence of epitaxial orientation on lattice matching, atomic bonding, and film thickness, in the topical case of epitaxy ...
, Bauer, , van der Merwe JH
openaire   +2 more sources

Electrodeposited Ceramic Superlattices

Science, 1990
Ceramic superlattices have been produced by electrodeposition with modulation wavelengths in the range from 5 to 10 nanometers. The Tl a Pb b O c /Tl d Pb e O f superlattices were deposited from a ...
J A, Switzer, M J, Shane, R J, Phillips
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MoS2 Moiré Superlattice for Hydrogen Evolution Reaction

ACS Energy Letters, 2019
A MoS2 moire superlattice with a twisted angle of θ ≈ 7.3° via a facile method instead of a conventional mechanical stacking method is successfully fabricated.
Zhenzhen Jiang, Wenda Zhou, A. Hong, Manman Guo, Xingfang Luo, C. Yuan   +5 more
semanticscholar   +1 more source

Green functions for superlattices

Physical Review B, 1985
A Green-function investigation is made of the (complex) band structure and local density of states of superlattices composed of two alternating component crystals, which are modeled by means of the two-band nearly-free-electron approximation. The variation of different superlattice band structures with component-crystal thickness is studied in detail ...
, Barto, , Davison
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Cluster Superlattice Membranes

ACS Nano, 2020
Cluster superlattice membranes consist of a two-dimensional hexagonal lattice of similar-sized nanoclusters sandwiched between single-crystal graphene and an amorphous carbon matrix. The fabrication process involves three main steps, the templated self-organization of a metal cluster superlattice on epitaxial graphene on Ir(111), conformal embedding in
Tobias Hartl, Moritz Will, Davor Čapeta, Rajendra Singh, Daniel Scheinecker, Virginia Boix de la Cruz, Sophia Dellmann, Paolo Lacovig, Silvano Lizzit, Boris V. Senkovskiy, Alexander Grüneis, Marko Kralj, Jan Knudsen, Jani Kotakoski, Thomas Michely, Pantelis Bampoulis   +15 more
openaire   +5 more sources

Phoxonic Hybrid Superlattice

ACS Applied Materials & Interfaces, 2015
We studied experimentally and theoretically the direction-dependent elastic and electromagnetic wave propagation in a supported film of hybrid PMMA (poly[methyl-methacrylate])-TiO2 superlattice (SL). In the direction normal to the layers, this one-dimensional periodic structure opens propagation band gaps for both hypersonic (GHz) phonons and near-UV ...
Alonso-Redondo, E., Huesmann, H., El Boudouti, E., Tremel, W., Djafari-Rouhani, B., Butt, H., Fytas, G.   +6 more
openaire   +3 more sources

Static correlations in superlattices

Physical Review B, 1991
A l'aide d'un modele heterogene, qui prend en compte la largeur finie des couches de charge, on presente une etude des processus intra et inter-sous-bandes. Tandis qu'une restriction de quelques sous-bandes peut decrire d'autres effets, des contributions d'autres niveaux sont necessaires pour simuler des correlations ...
, Schweng, , Miesenböck
openaire   +2 more sources

Properties and applications of new superlattice: twisted bilayer graphene

Materials today physics, 2019
Two-dimensional (2D) materials have different physical and chemical properties from bulk materials. Single-layer 2D materials are stacked vertically similar to Lego blocks to form van der Waals heterostructures (VdWHs), and the properties of 2D materials
Jiangcai Wang, Xijiao Mu, Lei Wang, M. Sun   +3 more
semanticscholar   +1 more source

Polaritonic effects in superlattices

Physical Review B, 1996
We present a method to compute the optical functions of superlattices in the excitonic energy region including the effect of the coherence between the electron-hole pair and the electromagnetic field. The electron-hole screened Coulomb potential is adopted and the valence-band structure is taken into account in the cylindrical approximation, thus ...
Czajkowski G, Bassani F, Tredicucci A
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PSEUDO–GAUSSIAN SUPERLATTICE

International Journal of Modern Physics C, 2010
A new family of superlattice structures modulated by the pseudo-Gaussian potential is proposed. The correlation between the configuration of minibands and the superlattice geometry is revealed using the transfer matrix approach.
Paulescu, Marius, Tulcan-Paulescu, Eugenia, Gravila, Paul   +2 more
openaire   +1 more source