Browsing Scholarly Works, Materials Science and Engineering (MSE) by Title
Now showing items 256-275 of 377
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Observation of domain texture in poled Pb(Mg1/3Nb2/3)O-3-PbTiO3 crystals
(AIP Publishing, 2002-11-01)Mapping of domain distributions under constant Bragg conditions has been performed on poled (0.7)Pb(Mg1/3Nb2/3)O-3-0.3PbTiO(3) crystals. Studies were done on crystals of cubic geometry, where each cube face was oriented ... -
Observation of partially incoherent <110> boundaries between polar nanodomains in Na1/2Bi1/2TiO3 single crystals
(American Institute of Physics, 2010-09-15)The ferroelectric domain structure of Na1/2Bi1/2TiO3 single crystals was investigated by transmission electron microscopy (TEM) and piezoforce microscopy (PFM). Bright-field TEM and PFM images revealed the presence of polar ... -
On a point defect inside an idealized elastic sphere
(American Institute of Physics, 1983)This paper presents a method of solution for the displacement, stress, and strain due to a point defect located inside a sphere. The solution is represented by a Love stress function in spherical coordinates, which is ... -
Optical power of semiconductor lasers with a low-dimensional active region
(Amer Inst Physics, 2014-01-14)A comprehensive analytical model for the operating characteristics of semiconductor lasers with a low-dimensional active region is developed. Particular emphasis is given to the effect of capture delay of both electrons ... -
Oriented growth of SrBi2Ta2O9 ferroelectric thin films
(AIP Publishing, 1996-09-01)We report on the ferroelectric properties of c-axis oriented ferroelectric SrBi2Ta2O9 thin films. Pt/SrBi2Ta2O9/Pt capacitors were grown on single crystal MgO (and/or SrTiO3) substrates using pulsed laser ablation. These ... -
Origin of magnetic and magnetoelastic tweedlike precursor modulations in ferroic materials
(American Physical Society, 2004-05-14)Based on experimental observations of modulated magnetic patterns in a Co(0.5)Ni(0.205)Ga(0.295) alloy, we propose a model to describe a ( purely) magnetic tweed and a magnetoelastic tweed. The former arises above the Curie ... -
Output power of a quantum dot laser: Effects of excited states
(Amer Inst Physics, 2015-11-14) -
Oxone®-Mediated TEMPO-Oxidized Cellulose Nanomaterials form I and form II
(MDPI, 2020-04-17)The 2,2,6,6-tetramethylpiperidin-1-oxyl (TEMPO) oxidation of cellulose, when mediated with Oxone® (KHSO5), can be performed simply and under mild conditions. Furthermore, the products of the ... -
A (Permalloy + NiZn Ferrite) Moldable Magnetic Composite for Heterogeneous Integration of Power Electronics
(MDPI, 2019-06-22)Soft magnetic moldable composites (SM2Cs) would be ideally suited for the integration of magnetic components in power electronic converters because they can be formed into magnetic cores by low-temperature and ... -
Piezoelectric properties of epitaxial Pb(Zr-0.525, Ti-0.475)O-3 films on amorphous magnetic metal substrates
(American Institute of Physics, 2012-04-01)Epitaxial growth of high piezoelectric constant Pb(Zr-0.525, Ti-0.475)O-3 (PZT) thin films deposited on amorphous magnetic Metglas (R) substrates by pulsed laser deposition (PLD) is reported. Particularly, Pt or Au buffer ... -
A piezoelectric single crystal traveling wave step motor for low-temperature application
(AIP Publishing, 2008-04-01)A piezoelectric Pb(Mg(1/3)Nb(2/3))O(3)-PbTiO(3) single crystal traveling wave rotary motor operated in a stepping motion for cryogenic actuations was developed and characterized. This single crystal stepping motor had a ... -
Piezomagnetic strain-dependent non-linear magnetoelectric response enhancement by flux concentration effect
(AIP Publishing, 2013-04-01)The non-linear magnetoelectric (ME) effect of Metglas/Pb(Mg1/3Nb2/3)O-3-PbTiO3 heterostructures has been studied. Such effect holds promise for modulation mode ME sensor applications that require no dc bias. The non-linear ... -
Plasma-assisted pulsed laser deposition of SrBi2Ta2O9 thin films of improved ferroelectric and crystalline properties
(AIP Publishing, 1999-06-01)Significant effect of the introduction of O-2-plasma discharge during pulsed laser ablative deposition of SrBi2Ta2O9 (SBT) films on improving the crystallite orientation and ferroelectric properties has been described. ... -
Polarization dynamics over broad time and field domains in modified ferroelectrics
(AIP Publishing, 2003-08-01)The dynamics of polarization switching have been investigated over extremely broad time (10(-8)Polarization switching in (001)-oriented Pb(Mg1/3Nb2/3)O-3-x%PbTiO3 crystals: Direct observation of heterogeneous nucleation by piezoreponse force microscopy
(AIP Publishing, 2004-11-01)Polarization switching in (001)-oriented Pb(Mg1/3Nb2/3)O-3-x%PbTiO3, PMN-x%PT, crystals for x=20 and 35 has been investigated in situ by scanning force microscopy in a piezoresponse mode, under a step-increased dc electrical ...Poly(tetrafluoro-p-xylylene), a low dielectric constant chemical vapor polymerized polymer
(AIP Publishing, 1998-01-01)A low dielectric constant polymer, poly(tetrafluoro-p-xylylene) (VT-4) was synthesized by a chemical vapor polymerization process using 4,5,7,8,12,13,15,16-octafluoro-[2.2]-paracyclophane as a precursor. The VT-4 polymer ...Powder-in-Tube Reactive Molten-Core Fabrication of Glass-Clad BaO-TiO2-SiO2 Glass–Ceramic Fibers
(MDPI, 2020-01-15)In this paper we report the fabrication of glass-clad BaO-TiO2-SiO2 (BTS) glass–ceramic fibers by powder-in-tube reactive molten-core drawing and successive isothermal heat treatment. Upon ...Processing of PbTiO3 thin films. I. in situ investigation of formation kinetics
(American Institute of Physics, 1996-01-01)A novel in situ stress measurement technique to study the formation kinetics of multicomponent oxide thin films was developed and was applied to PbTiO3. Single phase PbTiO3 thin films were formed from the reaction between ...Processing of PbTiO3 thin films. II. in situ investigation of stress relaxation
(American Institute of Physics, 1996-01-01)Stress relaxation in PbTiO3 films was investigated by the in situ stress measurement technique. A simple viscous flow model was successfully used to interpret the kinetics and behavior of stress relaxation of PbTiO3 thin ...Processing of PbTiO3 thin films. III. Effects of ion bombardment
(American Institute of Physics, 1996-01-01)The effects of ion bombardment on multicomponent oxides, such as PbTiO3, and multilayer systems have been extensively studied by an in situ stress measurement technique. Energetic ion bombardment was found to accelerate ...
