Results 81 to 90 of about 3,436,516 (244)

Helix Alignment, Chevrons, and Edge Dislocations in Twist‐Bend Ferroelectric Nematics

open access: yesAdvanced Science, EarlyView.
The recently discovered twist‐bend ferroelectric nematic (NTBF) is the new member of the multiferroic family, representing a fluid with an oblique helicoidal (heliconical) periodic structure of spontaneous electric polarization. The work presents a thorough exploration of the material properties of this phase, how the periodic modulation of ...
Bijaya Basnet   +8 more
wiley   +1 more source

Modelling of the electronic and ferroelectric properties of trichloroacetamide using Monte Carlo and first-principles calculations

open access: yesJournal of Materiomics, 2017
The electronic structure and ferroelectric mechanism of trichloroacetamide were studied using first principles calculations and density functional theory within the generalized gradient approximation.
Yaxuan Cai   +4 more
doaj   +1 more source

Ferroelectricity in Organic Molecular Crystals

open access: yesMolecular Science, 2011
Ferroelectricity has been time-honored subject in terms of various electronic, electro-mechanical, and optical functions. Developing organic ferroelectrics with advantages of light-weight, flexible, low-cost, and environmentally benign characteristics is surely in demand, yet needs elaborate chemical designs of objective functions.
openaire   +2 more sources

Polymorphism and molecular dynamics in two selected ferroelectric liquid crystals

open access: yes, 1995
Broad band dielectric spectroscopy, DTA calorimetry and polarizing microscopy have been used to study smectic polymorphysim and molecular dynamics of a well known ferroelectric material DOBAMBC and of fluorinated substance 3-(3-Fluoryo-nonyl)-6[4 ...
Wrobel, S,   +5 more
core  

Tailoring Dielectric Properties of Multilayer Composites Using Spark Plasma Sintering [PDF]

open access: yes, 2007
A straightforward and simple way to produce well-densified ferroelectric ceramic composites with a full control of both architecture and properties using spark plasma sintering (SPS) is proposed. SPS main outcome is indeed to obtain high densification at
Estournès, Claude   +2 more
core   +1 more source

Wavy‐Interlocked Stretchable Triboelectric Nanogenerators Enhanced by Liquid Metal Microflowers for Self‐Powered Wearable Motion Monitoring

open access: yesAdvanced Science, EarlyView.
Schematic showing a stretchable triboelectric nanogenerator based on interlocked wavy architectures that uses EGaIn microflower‐embedded PVDF‐TrFE and Nylon‐6 nanofiber membranes. The multi‐petaled, electron‐rich EGaIn microflowers enhance interfacial polarization and capacitance, while the interlocked wavy architecture enlarges the effective contact ...
Qianqian Xu   +12 more
wiley   +1 more source

Photo-reduction of silver salts on highly heterogeneous lead zirconate titanate [PDF]

open access: yes, 2007
This paper presents the work undertaken to determine the influences on the photo-induced growth of silver nanoclusters on the surfaces of lead zirconate titanate thin films.
Dunn, Steve, Jones, Paul M.
core   +1 more source

Orbital Magnetic Moment Controlled Converse Magnetoelectric Effect in bcc‐Co3Mn/Fe/V/PMN‐PT Multiferroic Heterostructures

open access: yesAdvanced Science, EarlyView.
Based on orbital magnetic moment control, a material design strategy is proposed for a giant converse magnetoelectric effect in multiferroic heterostructures. This study will pioneer a promising route toward low‐power spintronic devices with an electric field.
Takamasa Usami   +5 more
wiley   +1 more source

Design principles for optimizing pyroelectric responses of doped HfO2

open access: yesApplied Physics Express
Ferroelectric HfO _2 is an emerging pyroelectric material with promising energy-harvesting applications. Herein, via ab-initio molecular dynamics simulations, we investigate the role of dopants in tailoring the pyroelectricity in ferroelectric HfO _2 ...
Jian Liu
doaj   +1 more source

Ultrafast Polarization Switching in a Biaxial Molecular Ferroelectric Thin Film: [Hdabco]ClO4

open access: yes, 2016
Molecular ferroelectrics are attracting much attention as valuable complements to conventional ceramic ferroelectrics owing to their solution processability and nontoxicity.
Heng-Yun Ye (1483354)   +5 more
core   +1 more source

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