182 research outputs found
Multiple-type solutions for multipole interface solitons in thermal nonlinear media
We address the existence of multipole interface solitons in one-dimensional
thermal nonlinear media with a step in the linear refractive index at the
sample center. It is found that there exist two types of solutions for tripole
and quadrupole interface solitons. The two types of interface solitons have
different profiles, beam widths, mass centers, and stability regions. For a
given propagation constant, only one type of interface soliton is proved to be
stable, while the other type can also survive over a long distance. In
addition, three types of solutions for fifth-order interface solitons are
found.Comment: 5 pages, 5 figure
Interface crack between dissimilar one-dimensional hexagonal quasicrystals with piezoelectric effect
Remarkably strong chemisorption of nitric oxide on insulating oxide films promoted by hybrid structure
The remarkably strong chemical adsorption behaviors of nitric oxide on
magnesia (001) film deposited on metal substrate have been investigated by
employing periodic density functional calculations with Van der Waals
corrections. The molybdenum supported magnesia (001) show significantly
enhanced adsorption properties and the nitric oxide is chemisorbed strongly and
preferably trapped in flat adsorption configuration on metal supported oxide
film, due to the substantially large adsorption energies and transformation
barriers. The analysis of Bader charges, projected density of states,
differential charge densities, electron localization function, highest occupied
orbital and particular orbital with largest Mg-NO-Mg bonding coefficients, are
applied to reveal the electronic adsorption properties and characteristics of
bonding between nitric oxide and surface as well as the bonding within the
hybrid structure. The strong chemical binding of nitric oxide on magnesia
deposited on molybdenum slab offers new opportunities for toxic gas detection
and treatment. We anticipate that hybrid structure promoted remarkable chemical
adsorption of nitric oxide on magnesia in this study will provide versatile
strategy for enhancing chemical reactivity and properties of insulating oxide
- …