Results 91 to 100 of about 111,474 (320)

Plastic/ferroelectric molecular crystals: Ferroelectric performance in bulk polycrystalline forms

APL Materials, 2021
Plastic crystals are a class of compounds composed of small molecules with globular structures. Plastic crystals exhibit various unique features, most of which arise from the rotator motion and orientational disorder of the constituent molecules.
Jun Harada
doaj   +1 more source

Regulating the Interphase Strain in High‐Entropy Oxide Thin Films – An Approach to Attaining Giant Energy Storage Capability under Moderate Electric Fields

Advanced Functional Materials, EarlyView.
This work demonstrates an interphase strain engineering strategy to regulate capacitive energy storage performance in high‐entropy oxide thin films. Through introducing pyrochlore nanocolumns, the polarization response of perovskite unit cells is strengthened, yielding recoverable energy densities up to 93 J cm−3 with an efficiency of 83% under ...
Hao Luo, Yunlong Sun, Haotian Wen, Richard Webster, Yasuhiro Sakamoto, Zizheng Song, Yating Ran, Chenlu Jiang, Siyuan Zhang, Zibin Chen, Shery L. Y. Chang, Danyang Wang   +11 more
wiley   +1 more source

Tuning the Polar States of Ferroelectric Films via Surface Charges and Flexoelectricity

, 2017
Using the self-consistent Landau-Ginzburg-Devonshire approach we simulate and analyze the spontaneous formation of the domain structure in thin ferroelectric films covered with the surface screening charge of the specific nature (Bardeen-type surface ...
Eliseev, Eugene A., Genenko, Yuri A., Kalinin, Sergei V., Li, Qian, Morozovska, Anna N., Vorotiahin, Ivan S.   +5 more
core   +1 more source

Illuminating the Origins of Ferroelectric‐Induced Photocurrent and Hole Lifetime Enhancement in BaTiO3 Photoanodes

Advanced Functional Materials, EarlyView.
The use of ferroelectric polarization to enhance photocatalytic and photoelectrocatalytic activity is an innovative, and increasingly studied route to improve the spatial separation of charge carriers and therefore enhance catalytic efficiency. These results demonstrate how the intrinsic properties of a ferroelectric film can extend charge carrier ...
Chloe Forrester, Adriana Augurio, Charlie Henderson, Ji‐Seon Kim, James R. Durrant, Joe Briscoe   +5 more
wiley   +1 more source

Porous flexible molecular-based piezoelectric composite achieves milliwatt output power density

Nature Communications
Molecular ferroelectrics have made breakthrough progress in intrinsic piezoelectric response that can be on par with advanced inorganic piezoelectric ceramics.
Jia-Qi Luo, Hai-Feng Lu, Yi-Jing Nie, Yu-Hang Zhou, Chang-Feng Wang, Zhi-Xu Zhang, Da-Wei Fu, Yi Zhang   +7 more
doaj   +1 more source

The Effect of Electric Aging on Vinylidene Fluoride Copolymers for Ferroelectric Memory

Nanomaterials
Copolymers based on vinylidene fluoride are potential materials for ferroelectric memory elements. The trend in studies showing that a decrease in the degree of crystallinity can lead to an unexpected increase in the electric breakdown field is noted. An
Valentin V. Kochervinskii, Evgeniya L. Buryanskaya, Aleksey S. Osipkov, Mstislav O. Makeev, Dmitry A. Kiselev, Margarita A. Gradova, Oleg V. Gradov, Boris V. Lokshin, Alexandr A. Korlyukov   +8 more
doaj   +1 more source

Ferroelectrics at the nanoscale [PDF]

physica status solidi (a), 2009
AbstractThere are several factors which make the investigation and understanding of nanoscale ferroelectrics particularly timely and important. Firstly, there is a market pressure, primarily from the electronics industry, to integrate ferroelectrics into devices with progressive decreases in size and increases in morphological complexity.
openaire   +3 more sources

Al1‐xScxN‐Based Ferroelectric Domain‐Wall Memristors

Advanced Functional Materials, EarlyView.
(a) Conductive atomic force microscopy (CAFM) image of the initial state bidomain structure of the Al0.85Sc0.15N (a) showing an enhanced conductivity of the head‐to‐head domain boundary. (b) CAFM image of the same area after application of several −65 V, 1 s voltage pulses showing lower conductivity of the generated tail‐to‐tail domain walls.
Haidong Lu, Georg Schönweger, Niklas Wolff, Ziming Ding, Adrian Petraru, Isabel Streicher, Hermann Kohlstedt, Christian Kübel, Stefano Leone, Lorenz Kienle, Simon Fichtner, Alexei Gruverman   +11 more
wiley   +1 more source

Evaluation of the electron-TO-phonon interaction in polar crystals from experimental data

, 2010
The aim of this study was to determine the strengths of the coupling of electrons with the polar long-wavelength transverse optical (TO) vibrations from infrared spectroscopy data.
Aleksandr Pishtshev, Barker, Bersuker, Bersuker, Born, Bussmann-Holder, Bussmann-Holder, Cardona, Cochran, Devreese, Ferrari, Fontana, Ghosez, Girlando, Girshberg, Girshberg, Han, Hayashi, Hidaka, Hofmeister, Homes, Kant, Konsin, Konsin, Konsin, Konsin, Konsin, Konsin, Konsin, Konsin, Konsin, Konsin, Konsin, Konsin, Konsin, Kristoffel, Kvyatkovskii, Maksimenko, Miller, Murase, Ohnishi, Peacock, Peticolas, Petzelt, Poole, Razeghi, Robertson, Robinson, Rudolf, Rödl, Saini, Sakai, Shimizu, Stuart, Sun, van Mechelen, Yartsev, Zamkova, Zhong   +58 more
core   +1 more source

A New Memory Effect in Bulk Crystals of 1T‐TaS2

Advanced Functional Materials, EarlyView.
A new memory effect is discovered in 1T‐TaS₂, appearing as a temperature shift in the metal to insulator transition, coinciding with the recently reported ramp reversal memory. These findings imply that ramp reversal memory is an emergent phenomenon, likely to appear in many different systems that share a few basic properties, which are discussed in ...
Avital Fried, Ouriel Gotesdyner, Irena Feldman, Amit Kanigel, Amos Sharoni   +4 more
wiley   +1 more source