Results 121 to 130 of about 9,032,815 (373)

Origin of ferroelectricity in high $T_c$ magnetic ferroelectric CuO

open access: yes, 2012
"Magnetic ferroelectric" has been found in a wide range of spiral magnets. However, these materials all suffer from low critical temperatures, which are usually below 40 K, due to strong spin frustration.
Cao, Kun   +3 more
core   +2 more sources

Does a Morphotropic Phase Boundary Exist in ZrxHf1‐xO2‐Based Thin Films?

open access: yesAdvanced Functional Materials, EarlyView.
This study investigates 6 nm zirconium‐rich hafnium‐zirconium oxide thin–film metal–insulator–metal capacitors using a combination of experimental methods and machine learning–based molecular dynamics simulations to provide insight into the physical mechanisms that enhance the dielectric constant near 0 V and attribute it to the field‐induced ...
Pramoda Vishnumurthy   +9 more
wiley   +1 more source

Ferroelectric catalysis: driving enhanced reactivity through polarization control

open access: yesJPhys Materials
Leveraging ferroelectric polarization is a viable method for boosting catalytic efficiency. The ferroelectric effect has shown enormous promise in enhancing the efficiency rate of catalysis, such as water splitting, CO _2 reduction, and hydrogen ...
Huma Khan, Tokeer Ahmad
doaj   +1 more source

Control of Polarization and Polar Helicity in BiFeO3 by Epitaxial Strain and Interfacial Chemistry

open access: yesAdvanced Functional Materials, EarlyView.
In BiFeO3 thin films, the interplay of interfacial chemistry, electrostatics, and epitaxial strain is engineered to stabilize homohelicity in polarization textures at the domain scale. The synergistic use of a Bi2O2‐terminated Aurivillius buffer layer and a highly anisotropic compressive epitaxial strain offers new routes to control the polar‐texture ...
Elzbieta Gradauskaite   +5 more
wiley   +1 more source

Incipient ferroelectricity in methylammonium lead halide perovskites

open access: yesCommunications Materials
Lead halide perovskites are promising materials for optoelectronic applications. Ferroelectricity is often considered as a phenomenon that improves their properties.
Alexei A. Bokov   +2 more
doaj   +1 more source

Correlation between sintering temperature and dwell time on structural and ferroelectric properties of NiTiO\(_3\)-CoFe\(_2\)O\(_4\) ceramics

open access: yesCommunications in Physics
The 0.9NiTiO3-0.1CoFe2O4 ceramic was prepared by sol-gel method. The structural and ferroelectric properties of the ceramic were investigated. Structure of the materials was analyzed by X-ray diffraction and scanning electron microscopy.
Luong Huu Bac   +4 more
doaj   +1 more source

Charge Transport in Ternary Charge‐Transfer Solid Solution Single Crystals

open access: yesAdvanced Functional Materials, EarlyView.
This study deconvolutes the roles of indirect (superexchange) and direct electronic coupling on charge transport in single crystals of an organic charge‐transfer molecular semiconductor (OSC). This model system elegantly demonstrates that structural defects introduced by chemical dopants play a significant role in the electronic performance ...
Jonathan C. Novak   +7 more
wiley   +1 more source

Enhancing Synaptic Plasticity and Multistate Retention of Organic Neuromorphic Devices Using Anion‐Excessive Gel Electrolyte

open access: yesAdvanced Functional Materials, EarlyView.
Anion‐excessive gel‐based organic synaptic transistors (AEG‐OSTs) that can maintain electrical neutrality are developed to enhance synaptic plasticity and multistate retention. Key improvement is attributed to the maintenance of electrical neutrality in the electrolyte even after electrochemical doping, which reduces the Coulombic force acting on ...
Yousang Won   +3 more
wiley   +1 more source

Physical origin of hafnium-based ferroelectricity

open access: yesComputational Materials Today
This review presents an overview of the developmental history of hafnium-based ferroelectric materials and their various potential applications. It delves into the origins of hafnium-based ferroelectric phases and summarizes recent research advancements ...
Shuning Lv   +7 more
doaj   +1 more source

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