Results 101 to 110 of about 66,752 (296)
Advanced Science, EarlyView.Here, we present an optoelectronic synaptic memtransistor (OSMT) integrating photoresponsive IGZO with contact‐engineered HfO2, enabling electrically and optically tunable synaptic weights. The device demonstrates broad range of tunable conductance states and array‐level image processing, highlighting its potential for intelligent machine vision ...
Donghyun Kang +6 more
wiley +1 more source
Annihilation of the pacemaking activity in the sinoatrial node cell and tissue
AIP Advances, 2018 Sinus node arrest is a dangerous disease, which is associated with the annihilation of the cardiac biological oscillators. The present work investigates in detail the pacemaking annihilation of the modeled single SAN cell and heterogeneous tissue by the ...
Keming Li, Zhikun Chu, Xiaodong Huang
doaj +1 more source
Real‐Time Ferroelectric Domain Wall Dynamics During Electric Poling and Depoling
Advanced Science, EarlyView.Real‐time visualization of domain wall dynamics during alternating‐current poling, direct‐current poling, and electrical depoling in relaxor‐PT ferroelectric single crystals reveals distinct field‐dependent pathways and strong path dependence. Instant polarized light microscopy uncovers reversible domain wall nucleation, motion, and reconfiguration ...
Ziqi Wang +12 more
wiley +1 more source
Positron annihilation studies of materials
, 2012 Positron annihilation provides sensitive and versatile probe techniques in materials science that can characterize electronic structure and vacancy-type, open volume, defects. The techniques utilize the information carried by the photons that result from
Wurschum, R. +3 more
core +1 more source
Charge‐Transfer‐Mediated Boron Magneto‐Ionics: Towards Voltage‐Driven Multi‐Ion Transport
Advanced Science, EarlyView.This study demonstrates voltage‐driven multi‐ion transport in FeBO systems, revealing simultaneous motion of B, Fe, and O ions enabled by charge‐transfer effects. By tuning oxidation states through oxygen incorporation, we achieve a transition from electrostatic‐like to electrochemical magneto‐ionic behavior. The findings establish boron magneto‐ionics,
Zheng Ma +15 more
wiley +1 more source
Diode effect for skyrmions interacting with linear protrusion defects
New Journal of PhysicsWe simulate collectively interacting skyrmions in a channel with periodic asymmetry, and find a strong diode effect for the skyrmion flow. There is also an asymmetry in the skyrmion annihilation rate for currents applied along the hard or easy substrate ...
J C Bellizotti Souza +4 more
doaj +1 more source
A combined fit on the annihilation corrections in Bu,d,s→PP decays within QCDF
Physics Letters B, 2015 Motivated by the possible large annihilation contributions implied by recent CDF and LHCb measurements on nonleptonic annihilation B-meson decays, and the refined experimental measurements on hadronic B-meson decays, we study the strength of annihilation
Qin Chang +3 more
doaj +1 more source
Positron annihilation in methane gas
, 1970 The annihilation of positrons in methane gas at room temperature has been measured at pressures below 2 atm. The annihilation rate for the free positron component is proportional to the gas density and corresponds to an effective number of electrons per
D. A. L. Paul, P. M. Smith
core +1 more source
Positron annihilation technique in hydrogen storage materials [PDF]
, 2021 The feasibility of using the positron annihilation methods is discussed. Two main methods of electron positron annihilation - positron annihilation lifetime spectroscopy and coincidence Doppler broadening are used to characterize the materials - hydrogen
Medic, Zarko
core
Advanced Science, EarlyView.Intrinsic phase toughening transforms a brittle B2 intermetallic into a plastically deformable, load‐bearing phase, while a heterogeneous laminated architecture suppresses strain localization and interface cracking. The synergy between ductile intermetallics and mesoscale heterogeneity establishes a general design strategy for breaking the long ...
Lu Yang +9 more
wiley +1 more source