Results 11 to 20 of about 52,373 (281)

Experimental Validation of Formula for Calculation Thermal Diffusivity in Superlattices Performed Using a Combination of Two Frequency-Domain Methods: Photothermal Infrared Radiometry and Thermoreflectance

open access: yesApplied Sciences, 2021
In this paper, we validate two theoretical formula used to characterize thermal transport of superlattices at different temperatures. These formulas are used to measure cross-plane thermal conductivity and thermal boundary resistance, when it is not ...
Michał Pawlak   +5 more
doaj   +1 more source

Spatiotemporally controllable honeycomb superlattice plasma photonic crystals in dielectric barrier discharge

open access: yesNew Journal of Physics, 2023
We present the experimental realization of tunable honeycomb superlattice plasma photonic crystals (PPCs) in dielectric barrier discharge by utilizing mesh-liquid electrodes. Fast reconfiguration among the simple honeycomb lattice, honeycomb superlattice,
Weili Fan   +5 more
doaj   +1 more source

Heat transfer through hydrogenated graphene superlattice nanoribbons: a computational study

open access: yesScientific Reports, 2022
Optimization of thermal conductivity of nanomaterials enables the fabrication of tailor-made nanodevices for thermoelectric applications. Superlattice nanostructures are correspondingly introduced to minimize the thermal conductivity of nanomaterials ...
Maryam Zarghami Dehaghani   +6 more
doaj   +1 more source

A Method to Probe the Interfaces in La2−xSrxCuO4-LaSrAlO4-La2−xSrxCuO4 Trilayer Junctions

open access: yesCondensed Matter, 2023
C-axis trilayer cuprate Josephson junctions are essential for basic science and digital circuit applications of high-temperature superconductors. We present a method for probing the interface perfection in La2−xSrxCuO4 (LSCO)-LaSrAlO4 (LSAO)-La2−xSrxCuO4
Xiaotao Xu   +6 more
doaj   +1 more source

Enhanced photoemission performance of an AlGaN photocathode by a superlattice emission layer

open access: yesAIP Advances, 2023
The AlGaN photocathode with a superlattice emission layer was grown by metal organic chemical vapor deposition. The existence of the superlattice structure was confirmed using a transmission electron microscope, and its optical and electrical properties ...
Jinjuan Du   +9 more
doaj   +1 more source

Characterization of temperature-dependent superlattice in Cu:KTN crystal

open access: yesMaterials Research Express, 2020
In this study, we grew CuO doped potassium tantalum niobate (Cu:KTN) crystals with a uniform superlattice structure by the off-center top-seeded solution growth (TSSG) method.
Fei Zhang   +9 more
doaj   +1 more source

All-angle broadband ENZ metamaterials

open access: yesNew Journal of Physics, 2022
A novel type of metamaterial is presented to produce broadband near-zero effective permittivity to a defined polarized probing electromagnetic wave with varying angles of incidence. The metamaterial has a uniaxial unit cell structure made up of symmetric
Lei Sun   +3 more
doaj   +1 more source

PEROVSKITES AND OTHER FRAMEWORK STRUCTURE CRYSTALLINE MATERIALS (BOOK' FIRST PAGES AND PREFACE)

open access: yesMaterials and Devices, 2021
Perovskites are among the most famous materials due to their exceptional properties: they present nearly all existing types of interesting properties, in particular as ferroics or multiferroics, they may be insulators, (super)conductors, or ...
Saint-Grégoire P., Smirnov M.
doaj   +1 more source

Manipulating matter waves in an optical superlattice [PDF]

open access: yes, 2016
We investigate the potential for controlling a non-interacting Bose-Einstein condensate loaded into a one-dimensional optical superlattice. Our control strategy combines Bloch oscillations originating from accelerating the lattice and from time-dependent
De Chiara, Gabriele   +3 more
core   +2 more sources

Avalanche Photodetector Based on InAs/InSb Superlattice

open access: yesQuantum Reports, 2020
This work demonstrates a mid-wavelength infrared InAs/InSb superlattice avalanche photodiode (APD). The superlattice APD structure was grown by molecular beam epitaxy on GaSb substrate.
Arash Dehzangi   +3 more
doaj   +1 more source

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