Search
Now showing items 1-10 of 146
Nanopillars with E-field accessible multi-state (N ≥ 4) magnetization having giant magnetization changes in self-assembled BiFeO3-CoFe2O4/Pb(Mg1/3Nb2/3)-38at%PbTiO3 heterostructures
(Springer Nature, 2018-01-26)
We have deposited self-assembled BiFeO3-CoFe2O4 (BFO-CFO) thin films on (100)-oriented SrRuO3-buffered Pb(Mg1/3Nb2/3)0.62Ti0.38O3 (PMN-38PT) single crystal substrates. These heterostructures were used for the study of ...
Evolution of domain structures in Na1/2Bi1/2TiO3 single crystals with BaTiO3
(American Physical Society, 2011-02-16)
The domain structures of Na1/2Bi1/2TiO3-BaxTiO3 (NBT-x%BT) crystals for x = 0, 4.5, and 5.5 have been investigated by polarized light and piezoresponse force microscopies. The results show that BaTiO3 (i) refines the size ...
Multiferroic properties of modified BiFeO3-PbTiO3-based ceramics: Random-field induced release of latent magnetization and polarization
(American Physical Society, 2005-09-28)
It has been found that aliovalent-substituted BiFeO3-PbTiO3-based polycrystalline materials have significantly enhanced multiferroic properties. Relative to unmodified BiFeO3, our results for modified BiFeO3-PbTiO3-based ...
Interplay between static and dynamic polar correlations in relaxor Pb(Mg1/3Nb2/3)O-3
(American Physical Society, 2010-04-01)
We have characterized the dynamics of the polar nanoregions in Pb(Mg1/3Nb2/3)O-3 through high-resolution neutron-backscattering and spin-echo measurements of the diffuse-scattering cross section. We find that the ...
Evidence for anisotropic polar nanoregions in relaxor Pb(Mg1/3Nb2/3)O-3: A neutron study of the elastic constants and anomalous TA phonon damping in PMN
(American Physical Society, 2012-09-18)
We use neutron inelastic scattering to characterize the acoustic phonons in the relaxor Pb(Mg1/3Nb2/3)O-3 (PMN) and demonstrate the presence of a highly anisotropic damping mechanism that is directly related to short-range ...
Giant strain with ultra-low hysteresis and high temperature stability in grain oriented lead-free K0.5Bi0.5TiO3-BaTiO3-Na0.5Bi0.5TiO3 piezoelectric materials
(Springer Nature, 2015-02-26)
We synthesized grain-oriented lead-free piezoelectric materials in (K0.5Bi0.5TiO3-BaTiO3-xNa(0.5)Bi(0.5)TiO(3) (KBT-BT-NBT) system with high degree of texturing along the [001]c (c-cubic) crystallographic orientation. We ...
Electromechanical and elastic isotropy in the (011) plane of 0.7Pb(Mg1/3Nb2/3)O-3-0.3PbTiO(3) crystals: Inhomogeneous shearing of polarization
(American Institute of Physics, 2002-10-01)
Temperature dependent electromechanical investigations of <110>, <001>, and <111> oriented morphotropic phase boundary compositions of Pb(Mg1/3Nb2/3)O-3-PbTi0(3) crystals have been performed. Softening of the dielectric ...
Pseudolinearity in the inverse dielectric susceptibility of poled Pb(Mg1/3Nb2/3)O-3-PbTiO3 crystals
(American Institute of Physics, 2002-07-01)
For poled oriented 0.67Pb(Mg1/3Nb2/3)O-3-0.33PbTiO(3) single crystals, dielectric measurements have revealed pseudolinear (Curie-Weiss) behavior for temperatures below a phase transition; however, significant deviations ...
Anhysteretic field-induced rhombhohedral to orthorhombic transformation in <110>-oriented 0.7Pb(Mg1/3Nb2/3)O-3-0.3PbTiO(3) crystals
(American Institute of Physics, 2002-12-15)
The electric-field induced polarization (P-E) and strain (epsilon-E) characteristics of <110>(c)-oriented 0.7Pb(Mg1/3Nb2/3)O-3-0.3PbTiO(3) crystals have been investigated, under both unipolar and bipolar drive. A field-induced ...
Adaptive ferroelectric states in systems with low domain wall energy: Tetragonal microdomains
(American Institute of Physics, 2003-09-01)
Ferroelectric and ferroelastic phases with very low domain wall energies have been shown to form miniaturized microdomain structures. A theory of an adaptive ferroelectric phase has been developed to predict the ...