Results 41 to 50 of about 52,373 (281)
Light absorption coefficient of an ordered array of spherical quantum dot chains
Condensed Matter Physics, 2017 We considered intersubband electron transitions in an array of one-dimensional chains of spherical quantum dots in the GaAs/Al_xGa_{1-x}As semiconductor system.
V.I. Boichuk +2 more
doaj +1 more source
Crystals, 2022 Achieving high quantum efficiency in long-wavelength LEDs has posed a significant challenge to the solid-state lighting and display industries. In this article, we use V-defect engineering as a technique to achieve higher efficiencies in red InGaN LEDs ...
Jacob Ewing +8 more
doaj +1 more source
Phonon-Induced Optical Superlattice [PDF]
Physical Review Letters, 2005 We demonstrate the formation of a dynamic optical superlattice through the modulation of a semiconductor microcavity by stimulated acoustic phonons. The high coherent phonon population produces a folded optical dispersion relation with well-defined energy gaps and renormalized energy levels, which are accessed using reflection and diffraction ...
Morais de Lima, Mauricio, Jr. +3 more
openaire +3 more sources
Advanced Functional Materials, EarlyView.The versatile precursor‐assisted soft sphere close packing during slot‐die coating is investigated with in situ X‐ray scattering. The soft crystallization pathways towards a close packing involve multistep structural transitions such as surface nucleation, in‐plane, and out‐of‐plane crystallization.
Guangjiu Pan +14 more
wiley +1 more source
Analysis of interface conversion processes of ballistic and diffusive motion in driven superlattices
, 2012 We explore the non-equilibrium dynamics of non-interacting classical particles in a one-dimensional driven superlattice which is composed of domains exposed to different time-dependent forces.
A. J. Lichtenberg +5 more
core +1 more source
Response of Bose gases in time-dependent optical superlattices [PDF]
, 2006 The dynamic response of ultracold Bose gases in one-dimensional optical lattices and superlattices is investigated based on exact numerical time evolutions in the framework of the Bose-Hubbard model.
+11 more
core +2 more sources
Optics Express, 2007 We reveal theoretically that defect superlattice solitons (DSSs) exist at the defect site in one-dimensional optical superlattices with focusing saturable nonlinearity. Solitons with some unique properties exist in superlattices with defects. For a positive defect, solitons exist at the semi-infinite gap, and solitons are stable at low power but ...
W H, Chen, Y J, He, H Z, Wang
openaire +2 more sources
Two-dimensional ferromagnetic superlattices [PDF]
National Science Review, 2019 Abstract Mechanically exfoliated two-dimensional ferromagnetic materials (2D FMs) possess long-range ferromagnetic order and topologically nontrivial skyrmions in few layers. However, because of the dimensionality effect, such few-layer systems usually exhibit much lower Curie temperature (TC) compared to their bulk counterparts.
Shanshan Liu +21 more
openaire +4 more sources
Clean‐Limit 2D Superconductivity in a Thick Exfoliated Kagome Film
Advanced Functional Materials, EarlyView.This study reports clean‐limit 2D superconductivity in a thick kagome system, analogous to the 3D case. It observes a drop in superfluid stiffness near the superconducting transition and a cusp‐like feature in the angular dependence of the upper critical field.
Fei Sun +3 more
wiley +1 more source
Symmetry breaking during defect self-organization under irradiation
Materials Theory, 2020 One of the most intriguing phenomena under radiation is the self-organization of defects, such as the void superlattices, which have been observed in a list of bcc and fcc metals and alloys when the irradiation conditions fall into certain windows ...
Yongfeng Zhang +5 more
doaj +1 more source