Results 291 to 300 of about 8,506,464 (324)

Acoustical properties of disordered ferroelectrics

Ferroelectrics, 1990
A short review of acoustic properties of a number of disordered ferroelectric materials is made. In the first place such characteristics as velocity of ultrasound elastic waves and their attenuation in a phase transition range are discussed. We show that rather wide class of compounds (relaxators) can be identified as correlated (cluster) polar glasses.
S. N. Dorogovtsev, N. K. Yushin
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Ferroelectric properties of (C5H5NH)5Bi2Br11

The Journal of Chemical Physics, 2001
A new pyridinium compound, (C5H5NH)5Bi2Br11, has been synthesized. The x-ray diffraction studies indicate that its structure is built up of four independent pyridinium cations and isolated Bi2Br115− groups. At room temperature it crystallizes in the monoclinic space group P21/n.
J. Jóźków, R. Jakubas, G. Bator, A. Pietraszko   +3 more
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Electrical Measurement of Ferroelectric Properties

2014
Ferroelectric materials are defined by the existence of a finite polarisation at zero electric field, the direction of which can be switched by the application of an external field. Measurement of the electrical properties is therefore an important tool in identifying ferroelectricity and in characterising the ferroelectric properties of a material. In
Mark Stewart, Markys G. Cain, Paul Weaver   +2 more
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Luminescence and Optical Properties of Relaxor Ferroelectrics

Ferroelectrics, 2005
The optical absorption spectrum, luminescence and photoconductivity on single crystals PbMg1/3Nb2/3O3 and on ceramics Pb0.91La0.09(Zr0.65Ti0.35)O 3 are investigated in the wide temperature range. The luminescence spectrum correlates with the photoconductivity spectrum.
Zverev D., Migachev S., Mamin R., Nikitin S., Sadykov M., Başaran E., Mikailov F.   +6 more
openaire   +3 more sources

Unusual properties of nanoscale ferroelectrics

2017
This article describes the unusual properties of nanoscale ferroelectrics (FE), including widely tunable polarization and improved properties in strained ferroelectric thin films; polarization enhancement in superlattices; polarization saturation in ferroelectric thin films under very large inplane strains; occurrence of ferroelectric phase transitions
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Ferroelectric Properties of Lead Metaniobate

Journal of the American Ceramic Society, 1953
Ferroelectric lead metaniobate, Pb(NbO 3 ) 2 , is structurally distinct from the ABO 3 perovskite‐type ferroelectrics presently known. Dielectric and dilatometric data indicate a 570°C. Curie point.
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Ferroelectric Properties of Selenate Alums

Physica Status Solidi (a), 1978
R. Jakubas, Z. Czapla, L. Sobczyk, S. Olejnik   +3 more
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Superior comprehensive energy storage properties in Bi0.5Na0.5TiO3-based relaxor ferroelectric ceramics

Chemical Engineering Journal, 2020
Xiaoshuang Qiao, Fudong Zhang, Di Wu, Bi Chen, Xumei Zhao, Zhanhui Peng, Xiaodan Ren, Pengfei Liang, X. Chao, Zupei Yang   +9 more
semanticscholar   +1 more source

Structural Properties of Ferroelectric Perovskites

1998
Abstract : Under this research grant, we carried out realistic first-principles computer calculations of the ground-state and finite-temperature structural and dielectric properties of cubic perovskite materials such as BaTiO3, SrTiO3, KNbO3, and PbTiO3.
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Chirality-induced relaxor properties in ferroelectric polymers

Nature Materials, 2020
Yang Liu, Bing Zhang, Wenhan Xu, Aziguli Haibibu, Zhubing Han, Wenchang Lu, J. Bernholc, Qing Wang   +7 more
semanticscholar   +1 more source