Glory of piezoelectric perovskites
Science and Technology of Advanced Materials, 2015 This article reviews the history of piezoelectric perovskites and forecasts future development trends, including Uchino’s discoveries such as the Pb(Mg1/3Nb2/3)O3–PbTiO3 electrostrictor, Pb(Zn1/3Nb2/3)O3–PbTiO3 single crystal, (Pb, La)(Zr, Ti)O3 ...
Kenji Uchino
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First-principles study of stability and vibrational properties of tetragonal PbTiO_3
, 1996 A first-principles study of the vibrational modes of PbTiO_3 in the ferroelectric tetragonal phase has been performed at all the main symmetry points of the Brillouin zone (BZ).
Alberto García +22 more
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Lattice dynamics of BaTiO3, PbTiO3 and PbZrO3: a comparative first-principles study [PDF]
, 1999 The full phonon dispersion relations of lead titanate and lead zirconate in the cubic perovskite structure are computed using first-principles variational density-functional perturbation theory, with ab initio pseudopotentials and a plane-wave basis set.
Cockayne, E. +3 more
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Theory of PbTiO3, BaTiO3, and SrTiO3 Surfaces
, 1999 First-principles total-energy calculations are carried out for (001) surfaces of the cubic perovskite ATiO3 compounds PbTiO3, BaTiO3, and SrTiO3. Both AO-terminated and TiO2-terminated surfaces are considered, and fully-relaxed atomic configurations are ...
Meyer, B. +2 more
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Large Negative Thermal Expansion Induced by Synergistic Effects of Ferroelectrostriction and Spin Crossover in PbTiO3-Based Perovskites. [PDF]
Chemistry of Materials, 2019 The discovery of unusual negative thermal expansion (NTE) provides the opportunity to control the common but much desired property of thermal expansion, which is valuable not only in scientific interests but also in practical applications.
Zhao Pan +20 more
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Ideal two-dimensional electronic structure in bulk lead titanate for superior thermoelectrics
Results in PhysicsAn ideal two-dimensional (2D) electronic structure is revealed in n-type tetragonal perovskite PbTiO3 through first-principle calculations. This opens exciting prospects for its applications in thermal-to-electrical energy conversion.
Te-Hsien Wang
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تأثير درجة الحرارة على خواص العزل الكهربائي لمادة تيتانيت الرصاص PbTiO3 [PDF]
مجلة ابحاث كلية التربية الاساسية, 2012 تم تحضير مادة تيتانيت الرصاصPbTiO3 باستخدام طريقة تفاعل الحالة الصلبة. في هذه الطريقة تم حرق خليط المركبين (PbO : TiO2 ) وبنسبة مولية [1 : 1] بدرجة حرارة حرق 900 оC ولمدة 2 hr ؛ تم التحقق من تبلور ونمو الطور الرباعي لمادة PbTiO3 ((c/a=1.039 باستخدام ...
د.جاسم محمد ياسين ألنعيمي
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Structural and dielectric study of the Na0.5Bi0.5TiO3–PbTiO3 and K0.5Bi0.5TiO3–PbTiO3 systems [PDF]
Journal of Materials Chemistry, 1997 A study of the Na 0.5 Bi 0.5 TiO 3 –PbTiO 3 and K 0.5 Bi 0.5 TiO 3 -PbTiO 3 systems has been carried out using X-ray diffraction, differential scanning calorimetry and dielectric measurements. The limits of the rhombohedral (Na 0.5 Bi 0.5 TiO 3 -rich side) and tetragonal (PbTiO 3 -rich side ...
Elkechai, Omar +4 more
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Coexistence of antiferrodistortive and ferroelectric distortions at the PbTiO$_3$ (001) surface
, 2004 The c(2$\times$2) reconstruction of (001) PbTiO$_3$ surfaces is studied by means of first principles calculations for paraelectric (non-polar) and ferroelectric ([001] polarized) films.
A. Munkholm +5 more
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Substantial bulk photovoltaic effect enhancement via nanolayering. [PDF]
, 2016 Spontaneous polarization and inversion symmetry breaking in ferroelectric materials lead to their use as photovoltaic devices. However, further advancement of their applications are hindered by the paucity of ways of reducing bandgaps and enhancing ...
Grinberg, Ilya +4 more
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