Results 91 to 100 of about 28,811 (266)

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

Optimal Control Drives Ultrafast and Energy‐Efficient Magnetization Switching in Van der Waals Magnets

open access: yesAdvanced Materials, EarlyView.
ABSTRACT The accelerating expansion of data‐centric technologies is sharply increasing the energy burden of information storage, placing unprecedented pressure on the efficiency of magnetic switching. Conventional field‐driven reversal, once the foundation of magnetic memory, has become impractical in modern architectures due to its high energy cost ...
Mohammad H. Badarneh   +2 more
wiley   +1 more source

Study Of Stress Wave Propagation With Nhdmoc

open access: yes, 2011
{"references": ["C.T.Sun, J.D.Achenbach and G.Herrmann, Continuum theory for a\nlaminated medium, ASME Journal of Mechanics, 1968, Vol.35,\npp:467-475.", "Drumheller, D.S and A.Bedford, On a continum theory for a laminated\nmedium, J.Appl.Mech. 1973, Vol.40, p.527.", "J.Aboudi, Transient waves in composite materials, Wave Motion 1987,\nVol.9, pp:141 ...
G.Y. Zhang   +3 more
openaire   +2 more sources

Organic Materials of Tomorrow: Horizons of Artificial Intelligence

open access: yesAdvanced Materials, EarlyView.
This review examines machine learning techniques accelerating the discovery of organic semiconductors by linking molecular structure to properties. Key methods include graph neural networks, generative models, and active learning. Applications to organic photovoltaics demonstrate practical impact.
Harold Mena   +3 more
wiley   +1 more source

Switchable Magnonic Crystals Based on Spin Crossover/CrSBr Heterostructures

open access: yesAdvanced Materials, EarlyView.
Multiscale modeling is employed to investigate the functionality of a light‐controlled, tunable magnonic crystal based on spin‐crossover Fe‐pz molecules integrated with a monolayer of CrSBr. Ab initio simulations confirm that the molecules remain functional on the CrSBr surface, while a semiclassical elastic model demonstrates that light‐induced ...
Andrei Shumilin   +4 more
wiley   +1 more source

Resonant Domain Wall Dynamics in a Three‐Dimensional Magnetic Nano Double Helix

open access: yesAdvanced Materials, EarlyView.
3D magnetic nanostructures promise exciting possibilities for magnetization dynamics. However, experimental realizations remain scarce. In nanoprinted cobalt double helices, time‐resolved X‐ray microscopy reveals harmonic domain wall dynamics. Simulations identify the mode and additional higher‐frequency resonances, revealing a rich dynamic landscape ...
Pamela Morales‐Fernández   +15 more
wiley   +1 more source

Wave propagation in a pre-stressed reinforced composite

open access: yesEngineering Transactions, 1976
In this study, a small time dependent displacement field is superimposed on an initial large static deformation, for a reinforced composite, and the linearized field equations and associated boundary conditions are obtained. Propagation of harmonic waves in such a composite medium is studied and various special cases are discussed.
openaire   +2 more sources

Electrically Tunable Heliconical Smectic Superstructure in Polar Fluids

open access: yesAdvanced Materials, EarlyView.
Strong dipole–dipole interactions give rise to an emergent polar smectic phase with spontaneous chiral symmetry breaking. This resulting polar heliconical smectic superstructure enables novel functionalities in polar fluids, such as color modulation driven by electric field strength and frequency, as well as second‐harmonic generation amplification ...
Hiroya Nishikawa   +5 more
wiley   +1 more source

Evolution law of surrounding rock stress field for ultra-deep shaft development blasting

open access: yesScientific Reports
With the increase of the construction depth for ultra-deep shaft development blasting, it is prone to occur problems such as reduced driving efficiency, frequent dynamic disasters, wellbore instability and fracture under the coupling effect of deep high ...
Bo Sun   +6 more
doaj   +1 more source

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