Results 11 to 20 of about 19,320 (297)
Nanoscale bubble domains with polar topologies in bulk ferroelectrics
Nature 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
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Ferroelectricity enhancement in ferroelectric nanotubes [PDF]
Phase Transitions, 2007 In this paper we study the size effects of the ferroelectric nanotube phase diagrams and polar properties allowing for effective surface tension and depolarization field influence. The approximate analytical expression for the paraelectric-ferroelectric transition temperature dependence on the radii of nanotube, polarization gradient coefficient ...
Morozovska, A. N. +2 more
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A ferroelectric memristor [PDF]
Nature Materials, 2012 Memristors are continuously tunable resistors that emulate synapses. Conceptualized in the 1970s, they traditionally operate by voltage-induced displacements of matter, but the mechanism remains controversial. Purely electronic memristors have recently emerged based on well-established physical phenomena with albeit modest resistance changes.
Chanthbouala, André +12 more
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, 2021 Device applications of ferroelectrics have not only utilized the switchable polarization but also adopted myriads of emerging physical properties. In particular, ferroelectrics in ultra-thin limit have recently attracted considerable scientific and ...
Choi, W.S. +9 more
core +1 more source
Porous (Ba,Sr)TiO3 ceramics for tailoring dielectric and tunability properties: Modelling and experiment [PDF]
Processing and Application of Ceramics, 2017 3D Finite Element Method simulations were employed in order to describe tunability properties in anisotropic porous paraelectric structures. The simulations predicted that properties of a ceramic can be tailored by using various levels of porosity ...
Roxana E. Stanculescu +6 more
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Kittel’s Brief Comments Endorsing an Alternative View on Barium Titanate
Condensed Matter, 2021 Charles Kittel has written a masterpiece book, “Introduction to Solid State Physics” (ISSP). He mentions in the chapter on ferroelectrics in detail that barium titanate is the typical displacive-type ferroelectric compound where the Ti4+ displacement ...
Akira Kojima
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Enabling Distributed Intelligence with Ferroelectric Multifunctionalities
Advanced Science, 2022 Distributed intelligence involving a large number of smart sensors and edge computing are highly demanded under the backdrop of increasing cyber‐physical interactive applications including internet of things.
Kui Yao +3 more
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Probing Ultrafast Dynamics of Ferroelectrics by Time‐Resolved Pump‐Probe Spectroscopy
Advanced 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
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Polarization Dynamics in Ferroelectrics: Insights Enabled by Machine Learning Molecular Dynamics. [PDF]
Adv Sci (Weinh)Machine learning molecular dynamics is presented as a route to capture polarization switching, domain wall kinetics, topological polar textures, and polar mechanical coupling beyond the limits of conventional atomistic methods. This Perspective surveys recent progress and identifies key methodological directions, including long‐range electrostatics ...
Bai D, He R, Liu J, Kou L.
europepmc +2 more sources
The Rise of Ferroelectricity at Nanoscale: Nanoelectronics is rediscovering the ferroelectricity
IEEE Nanotechnology Magazine, 2021 We present a comprehensive review of the emerging nanoscale ferroelectric materials used in novel nanoelectronics devices. First, we outline specific physical and electronic properties of ferroelectric materials, then we focus on two main classes of ferroelectrics based on hafnium oxide (HfO2) and 2D materials.
Mircea Dragoman +5 more
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