Results 21 to 30 of about 5,019 (211)

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

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

Above Room Temperature Reversible Phase Transition Induces Distinct Dielectric and Nonlinear Optical Switching Response Behavior in Crown-Ether-Based Supramolecular Clathrate

open access: yesCrystals, 2019
Stimuli-responsive materials with coexisting nonlinear optical (NLO) and dielectric properties are technologically important, which enable simultaneous conversion of optoelectronic properties between different states under external stimuli. By rationally
Jing Jing   +5 more
doaj   +1 more source

Unconventional polarization fatigue in van der Waals layered ferroelectric ionic conductor CuInP2S6

open access: yesNature Communications, 2023
Recent progress in two-dimensional ferroelectrics greatly expands the versatility and tunability in van der Waals heterostructure based electronics.
Ziwen Zhou   +17 more
doaj   +1 more source

Screen‐Printed Flexible Piezoelectric Force Sensor Array with Electromagnetic Interference Shielding

open access: yesAdvanced Engineering Materials, EarlyView.
This article introduces a flexible screen‐printed piezoelectric sensor array designed for low‐frequency healthcare applications such as tactile sensing and cardiovascular monitoring. The device integrates interface electronics enabling the simultaneous acquisition of up to 128 signals, along with flexible EMI shielding that significantly reduces noise ...
Joseph Faudou   +6 more
wiley   +1 more source

Ab Initio Study on 3D Anisotropic Ferroelectric Switching Mechanism and Coercive Field in HfO2 and ZrO2

open access: yesAdvanced Functional Materials, EarlyView.
This study uncovers a new switching mechanism in HfO2 and ZrO2, where the absence of a non‐polar layer along the a‐direction induces interaction between polar layers. Consequently, the switching barriers for growth are lower than those for nucleation in this direction, leading to a size‐dependent coercive field that matches experimental observations ...
Kun Hee Ye   +6 more
wiley   +1 more source

Tuning ferroelectric phase transition temperature by enantiomer fraction

open access: yesNature Communications
Tuning phase transition temperature is one of the central issues in phase transition materials. Herein, we report a case study of using enantiomer fraction engineering as a promising strategy to tune the Curie temperature (T C) and related properties of ...
Chang-Chun Fan   +9 more
doaj   +1 more source

Atomic scale symmetry and polar nanoclusters in the paraelectric phase of ferroelectric materials

open access: yesNature Communications, 2021
The existence and atomic-level structure of the hypothetical polar nanoclusters above the Curie temperature is one of the oldest open questions in the physics of ferroelectrics.
Andreja Bencan   +8 more
doaj   +1 more source

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