Results 21 to 30 of about 44,734 (286)

Probing Ultrafast Dynamics of Ferroelectrics by Time‐Resolved Pump‐Probe Spectroscopy

open access: yesAdvanced Science, 2021
Ferroelectric materials have been a key research topic owing to their wide variety of modern electronic and photonic applications. For the quick exploration of higher operating speed, smaller size, and superior efficiencies of novel ferroelectric devices,
Yuan Zhang   +5 more
doaj   +1 more source

Synchrotron x-ray Studies of Superlattice Ordering in Pb(Mg1/3Nb2/3)O3 Single Crystals Doped with PbTiO3 [PDF]

open access: yes, 2003
The temperature dependence of the superlattice reflections: a) F spots and b) alpha spots in a lead magnesium niobate (PMN) single crystals containing 0% and 6% of PbTiO3 (PT) has been studied using synchrotron x-ray scattering techniques.
Chen, Haydn   +3 more
core   +2 more sources

Electroresistance and electro-optic effects in molecular ferroelectrics

open access: yesAPL Materials, 2020
Molecular ferroelectrics are often considered as an alternative to inorganic ferroelectrics due to their structural diversity, optical transparency, and low-temperature solution processing.
Yong Hu, Shenqiang Ren
doaj   +1 more source

Proton-controlled molecular ionic ferroelectrics

open access: yesNature Communications, 2023
Molecular ferroelectric materials consist of organic and inorganic ions held together by hydrogen bonds, electrostatic forces, and van der Waals interactions.
Yulong Huang   +5 more
doaj   +1 more source

Deciphering the atomic-scale structural origin for large dynamic electromechanical response in lead-free Bi0.5Na0.5TiO3-based relaxor ferroelectrics

open access: yesNature Communications, 2022
For relaxor ferroelectrics, correlating their properties and local structures is challenging. Here, the authors correlate the atomic-scale structure and the large dynamic electromechanical property in Bi0.5Na0.5TiO3-based relaxor ferroelectrics.
Jie Yin   +14 more
doaj   +1 more source

Releasing chemical energy in spatially programmed ferroelectrics

open access: yesNature Communications, 2022
Chemical energy ferroelectrics show limited control of the energy release rate. Here, the authors design spatially programmed energetic ferroelectrics with controlled energy release rates from machine learning-directed additive manufacturing and ice ...
Yong Hu   +15 more
doaj   +1 more source

Enhanced electrodynamic gating in two-dimensional transistors using ferroelectric capping

open access: yesNano Express, 2023
Two-dimensional (2D) materials such as semiconductors and ferroelectrics are promising for future energy-efficient logic devices because of their extraordinary electronic properties at atomic thickness.
Hemendra Nath Jaiswal   +10 more
doaj   +1 more source

Electron Transport Properties of Composite Ferroelectrics

open access: yes, 2013
We study electron transport in composite ferroelectrics --- materials consisting of metallic grains embedded in a ferroelectric matrix. Due to its complex tunable morphology the thermodynamic properties of these materials can be essentially different ...
Beloborodov, I. S.   +2 more
core   +1 more source

Nanoscale bubble domains with polar topologies in bulk ferroelectrics

open access: yesNature Communications, 2021
Experimentally manipulating bubble domains remains elusive especially in the bulk form of ferroelectrics. Here, the authors achieve self-confined bubble domains with multiple polar topologies in bulk Bi0.5Na0.5TiO3 ferroelectrics, demonstrating ...
Jie Yin   +11 more
doaj   +1 more source

Size effects in the thin films of order - disorder ferroelectrics subject to the depolarization field

open access: yes, 2004
The films of order-disorder type ferroelectrics were considered in the mean field approximation taking into account depolarization field. It was shown that size effects in this system could be described on the base of bulk system equation of state with ...
Blinc   +8 more
core   +1 more source

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