Results 21 to 30 of about 5,445 (265)
Electroresistance and electro-optic effects in molecular ferroelectrics
APL Materials, 2020 Molecular ferroelectrics are often considered as an alternative to inorganic ferroelectrics due to their structural diversity, optical transparency, and low-temperature solution processing.
Yong Hu, Shenqiang Ren
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Proton-controlled molecular ionic ferroelectrics
Nature Communications, 2023 Molecular ferroelectric materials consist of organic and inorganic ions held together by hydrogen bonds, electrostatic forces, and van der Waals interactions.
Yulong Huang +5 more
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Ferroelectric or non-ferroelectric: Why so many materials exhibit “ferroelectricity” on the nanoscale [PDF]
Applied Physics Reviews, 2017 Ferroelectric materials have remained one of the major focal points of condensed matter physics and materials science for over 50 years. In the last 20 years, the development of voltage-modulated scanning probe microscopy techniques, exemplified by Piezoresponse force microscopy (PFM) and associated time- and voltage spectroscopies, opened a pathway to
Rama K. Vasudevan +4 more
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Nature 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
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Ferroelectric Electron Holography [PDF]
Microscopy and Microanalysis, 2002 Ferroelectrics are increasingly important as materials in semiconductor technology, e.g. for building non-volatile memory chips. For optimisation of the properties of such devices, there is an urgent need for methods, which analyse the ferroelectric properties at nanometer scale. Furthermore, the basic understanding of the interaction of ferroelectrics
Hannes, Lichte +3 more
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Releasing chemical energy in spatially programmed ferroelectrics
Nature 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
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Theory of electronic ferroelectricity [PDF]
Physical Review B, 1996 We present a theory of the linear and nonlinear optical characteristics of the insulating phase of the Falicov-Kimball model within the self-consistent mean-field approximation. The Coulomb attraction between the itinerant d-electrons and the localized f-holes gives rise to a built-in coherence between the d and f-states, which breaks the inversion ...
Portengen, T. +2 more
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Ferroelectricity at ferroelectric domain walls
, 2013 10 pages with 6 figures embedded. Includes Suppl. Mats.
Wojdel, Jacek C., Iniguez, Jorge
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Nano ResearchConverting ambient thermal fluctuations into selective chemical transformations represents an emerging strategy in sustainable catalysis. Unlike conventional thermocatalysis that requires continuous high-temperature input, we report a molecular ...
Huihui Hu +5 more
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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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