Results 71 to 80 of about 1,812 (181)

The effect of dynamical compressive and shear strain on magnetic anisotropy in a low symmetry ferromagnetic film [PDF]

, 2017
Dynamical strain generated upon excitation of a metallic film by a femtosecond laser pulse may become a versatile tool enabling control of magnetic state of thin _lms and nanostructures via inverse magnetostriction on a picosecond time scale.
A M Kalashnikova, A S Salasyuk, A V Akimov, A V Scherbakov, A W Rushforth, Atulasimha J, Bowe S, D R Yakovlev, Gurevich A G, J Jäger, Landau L D, Lide D R, M Bayer, Shelukhin L A, T L Linnik, V N Kats   +15 more
core   +3 more sources

ULTRASONIC EXPERIMENTS WITH PICOSECOND TIME RESOLUTION

Le Journal de Physique Colloques, 1985
We describe a new method which can be used to make ultrasonic measurements with picosecond time resolution. The method can be used to study samples in which the acoustic path length is very short and the ultrasonic attenuation very large. We describe the theory of the generation and detection process, and present some attenuation and velocity ...
Thomsen, C., Grahn, H., Maris, H., Tauc, J.   +3 more
openaire   +2 more sources

Retina‐Inspired Bi‐Based Terahertz Photonic Neuromorphic Devices

Advanced Science, EarlyView.
Combined with effective band alignment and substrate engineering, bismuth materials are introduced to form terahertz photonic bio‐inspired devices with picosecond short‐term plasticity to enable multi‐scene visual perception. Thus obtained hardware through the terahertz optical neural network (THz‐ONN) demonstrates high recognition accuracy, providing ...
Pujing Zhang, Donggang Xie, Longyu Shi, Mengyuan Wang, Huiwen Shi, Yu Wu, Menglei Li, Guangwei She, Peijie Wang, Wensheng Shi, Cunlin Zhang, Kuijuan Jin, Guozhen Yang, Qingli Zhou, Chen Ge   +14 more
wiley   +1 more source

In situ imaging of the dynamics of photo-induced structural phase transition at high pressures by picosecond acoustic interferometry

New Journal of Physics, 2017
Picosecond acoustic interferometry is used to monitor in time the motion of the phase transition boundary between two water ice phases, VII and VI, coexisting at a pressure of 2.15 GPa when compressed in a diamond anvil cell at room temperature.
Maju Kuriakose, Nikolay Chigarev, Samuel Raetz, Alain Bulou, Vincent Tournat, Andreas Zerr, Vitalyi E Gusev   +6 more
doaj   +1 more source

Intrinsic Mechanical Parameters and their Characterization in Solid‐State Lithium Batteries

Advanced Energy Materials, Volume 15, Issue 11, March 18, 2025.
This review focuses on the intrinsic mechanical parameters and their associated characterization in solid‐state batteries. The physical significance of mechanics parameters is introduced with exhaustive classifications by elastic, plastic deformations and fracture in bulk, adhesion, friction at interfaces, and mechanical fatigue in cells ...
Shuai Hao, Qianyi Zhang, Xiangkang Kong, Zhaoxiang Wang, Xue‐Ping Gao, Paul R. Shearing   +5 more
wiley   +1 more source

Piezoelectric response to coherent longitudinal and transverse acoustic phonons in a semiconductor Schottky diode [PDF]

, 2017
We study the generation of microwave electronic signals by pumping a (311) GaAs Schottky diode with compressive and shear acoustic phonons, generated by femtosecond optical excitation of an Al _lm transducer and mode conversion at the Al-GaAs interface ...
Akimov, Andrey V., Glavin, B.A., Henini, M., Jasiukiewicz, Cz., Kent, A.J., Lehmann, D., Poyser, Caroline Louise, Srikanthreddy, D.   +7 more
core   +1 more source

Alcohol‐Adduct Mediated Precursor Stabilization Strategies for Conformal SnO2 Layers in Highly Efficient and Stable Perovskite Solar Modules

Advanced Energy Materials, EarlyView.
An alcohol‐adduct‐mediated strategy is employed to stabilize tin isopropoxide for the formation of a homogeneous double electron transport layer (ETL) incorporating SnO2 nanoparticles (NPs). This double‐ETL exhibits improved optical and charge‐transport properties due to reduced defect density and better energy level alignment, resulting in high ...
You‐Hyun Seo, Eun Young Park, Chan Su Moon, Dong Gyu Lee, Junho Park, Fabian Rotermund, Gill Sang Han, Tae Kyung Lee, Nam Joong Jeon, Bong Joo Kang, Young Yun Kim   +10 more
wiley   +1 more source

Unidirectional decomposition method for obtaining exact localized waves solutions totally free of backward components

, 2008
In this paper we use a unidirectional decomposition capable of furnishing localized wave pulses, with luminal and superluminal peak velocities, in exact form and totally free of backward components, which have been a chronic problem for such wave ...
A. P. Prudnikov, I. S. Gradshteyn, Michel Zamboni-Rached, R. Donnelly, R. Grunwald, R. Grunwald   +5 more
core   +1 more source

Recent Advances in Stimulated Brillouin Scattering in Integrated Photonics

Advanced Physics Research, EarlyView.
This review systematically surveys recent advances in stimulated Brillouin scattering (SBS) within integrated photonics. It begins by elucidating the fundamental mechanisms of stimulated coupling between photons and acoustic phonons in nanoscale waveguides, enhanced by the photoelastic and moving boundary effects.
Songyue Liu, Qi Lu, Pan Hu, Yuan Zhong, Yu He, Yaojing Zhang, Young‐Ik Sohn, Yikai Su, Lu Sun   +8 more
wiley   +1 more source

Hydrogen Migration Enhances Proton‐Coupled Electron Transfer in an S‐Scheme Heterojunction for High‐Efficiency Photocatalysis

Carbon Energy, EarlyView.
Precisely directed built‐in electric field in an S‐scheme heterojunction synergizes photogenerated charge separation with interfacial proton migration, thus co‐localizing electrons and protons on the NOH surface and boosting proton‐coupled electron transfer kinetics in the rate‐determining hydrogen release step. ABSTRACT The kinetic bottleneck in solar‐
Qinhao Zhao, Yuxin Wang, Xuyu Yang, Shuhan Sun, Kai Li, Yanxian Jin, Huayue Zhu, Song Wang, Xiao Zhang, Xianqiang Xiong   +9 more
wiley   +1 more source