Results 51 to 60 of about 5,733 (288)

Positively Charged Polymer‐Brush MOFs for Large‐Area, Pressure‐Resistant Gas Separation Membranes

open access: yesAdvanced Materials, EarlyView.
A universal POPA strategy enables positively charged polymer‐brush MOFs with self‐adaptive interfacial interlocking to resist aggregation under fast processing. This design ensures seamless dispersion within large‐area selective layers, achieving 1 m‐wide roll‐to‐roll fabrication of pressure‐resistant MMCMs with tunable CO2 separation performance ...
Yi Yang   +11 more
wiley   +1 more source

The Dependence of the Width and the Height of Barriers in a Step-like Single Barrier Resonant Tunneling Device

open access: yes, 2020
Transmission coefficient was calculated by a transfer matrix method in the case of a step-like single barrier structure. The resonant energy is mainly determined by the width and the height of the thicker (main) barrier.
Masato Ohmukai, Hiroshi Ishino
core  

Room‐Temperature Skyrmionic Synapse in 2D Ferromagnet Fe3GaTe2 Operating via Collective Spin Texture Transformation

open access: yesAdvanced Materials, EarlyView.
We demonstrate a neuromorphic synapse in 2D Fe3GaTe2 flakes. The device operates via a current‐driven transformation from a skyrmion‐lattice to a stripe‐domain state, yielding a linear anomalous Hall resistance response with a tunable slope to enable multiply‐accumulate operations. Simulations confirm its viability in artificial neural networks.
Jixiang Huang   +20 more
wiley   +1 more source

Simulation and Fabrication of Double Barrier Structure of P-I-N Amorphous Silicon (a-Si) Device

open access: yesJournal of Mathematical and Fundamental Sciences, 2019
. The application of double barrier (DB) structure in p-i-n amorphous silicon (a-Si) device was studied. The theoretical study was done to obtain device parameters such as tunneling probability and current density.
Ida Hamidah   +3 more
doaj  

Design Considerations of Structural Parameters in Resonant Tunneling Diode by None-Equilibrium Green Function Method [PDF]

open access: yesЖурнал нано- та електронної фізики, 2015
This paper presents the effects of structural parameters like Quantum well width, barrier width, spacer width, contact width and contact doping, on performance of Resonant Tunneling Diode using full quantum simulation.
M. Charmi, M.H. Yousefi
doaj  

Space-time resolved quantum field approach to Klein tunneling dynamics across a finite barrier

open access: yes, 2022
International audienceWe investigate Klein tunneling with space-time resolved solutions to relativistic quantum field equations. We show in particular that no particle actually tunnels through a finite supercritical barrier, even in the case of resonant ...
Alkhateeb, M., Matzkin, A.
core   +1 more source

n‐Type Polymer Radio Frequency Rectifiers Operating at 18.5 GHz

open access: yesAdvanced Materials, EarlyView.
Combining an n‐doped polymer semiconductor with wafer‐scale asymmetric planar electrodes featuring work function‐engineered contacts yields radio‐frequency diodes and rectifying circuits operating at up to 18.5 GHz. The devices combine scalable manufacturing with an operating frequency previously unattainable by large‐area organic electronics ...
Lazaros Panagiotidis   +19 more
wiley   +1 more source

Tunneling times through a barrier with inelasticity

open access: yes, 2007
Tunneling delay times of wavepackets in quantum mechanical penetration of rectangular barriers have long been known to show a perplexing independence with respect to the width of the barrier.
B. Dutta-Roy   +3 more
core   +1 more source

Neuromorphic Electronics for Intelligence Everywhere: Emerging Devices, Flexible Platforms, and Scalable System Architectures

open access: yesAdvanced Materials, EarlyView.
The perspective presents an integrated view of neuromorphic technologies, from device physics to real‐time applicability, while highlighting the necessity of full‐stack co‐optimization. By outlining practical hardware‐level strategies to exploit device behavior and mitigate non‐idealities, it shows pathways for building efficient, scalable, and ...
Kapil Bhardwaj   +8 more
wiley   +1 more source

Resonant and non-resonant tunneling through a double barrier

open access: yes, 2005
An explicit expression is obtained for the phase-time corresponding to tunneling of a (non-relativistic) particle through two rectangular barriers, both in the case of resonant and in the case of non-resonant tunneling.
V. S. Olkhovsky   +5 more
core   +2 more sources

Home - About - Disclaimer - Privacy