Browsing Scholarly Works, Materials Science and Engineering (MSE) by Title
Now showing items 21-40 of 377
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Calculation of x‐ray intensity from a rough sample based on a statistical model
(American Institute of Physics, 1988-06-01)An x‐ray intensity correction is developed which begins with a roughness model that is often used to describe real surfaces. This is based upon a normal distribution of surface asperities relative to a mean plane. Pair ... -
Carrier capture delay and modulation bandwidth in an edge-emitting quantum dot laser
(AIP Publishing, 2011-03-01)We show that the carrier capture from the optical confinement layer into quantum dots (QDs) can strongly limit the modulation bandwidth omega(-3) dB of a QD laser. As a function of the cross-section sigma(n) of carrier ... -
Characterization and elimination of dry etching damaged layer in Pt/Pb(Zr0.53Ti0.47)O-3/Pt ferroelectric capacitor
(AIP Publishing, 1999-07-01)The damage of Pb(Zr0.53Ti0.47)O-3 thin film due to dry etching process was characterized in terms of the microstructure and electrical properties. The damaged layer seems to be amorphous and the thickness of the damaged ... -
Characterization of magnetoelectric laminate composites operated in longitudinal-transverse and transverse-transverse modes
(American Institute of Physics, 2004-03-01)Magnetostrictive and piezoelectric laminate composites of terfenol-D and Pb(Zr1-xTix)O-3 have been studied. The magnetoelectric (ME) coefficients have been characterized for the different operational modes: (i) a longitudinally ... -
Characterizations of Rapid Sintered Nanosilver Joint for Attaching Power Chips
(MDPI, 2016-07-12)Sintering of nanosilver paste has been extensively studied as a lead-free die-attach solution for bonding semiconductor power chips, such as the power insulated gated bipolar transistor (IGBT). However, for the traditional ... -
Circumferential-mode, quasi-ring-type, manetoelectric laminate composite - a highly sensitive electric current and/or vortex magnetic field sensor
(AIP Publishing, 2005-05-01)A quasi-ring-type magnetoelectric (ME) laminate composite consisting of a circumferentially poled piezoelectric Pb(Zn1/3Nb2/3O)(3-)4.5 at.% PbTiO(3)single-crystal ring and two circumferentially magnetized magnetostrictive ... -
Comparison of lead zirconate titanate thin films on ruthenium oxide and platinum electrodes
(American Institute of Physics, 1994-02-01)High-resolution and bright- and dark-field transmission electron microscopy are used to characterize and compare the interface structures and microstructure of PZT/RuO2/SiO2/Si and PZT/Pt/Ti/SiO2/Si ferroelectric thin ... -
Comparison of noise floor and sensitivity for different magnetoelectric laminates
(American Institute of Physics, 2010-10-15)We present a comparison of the magnetoelectric (ME) response and magnetic-field sensitivities of engineered laminate sensors comprised of magnetostrictive and piezoelectric phases. The ME voltage coefficients for Metglas ... -
Comparisons of polarization switching in "hard," "soft," and relaxor ferroelectrics
(American Institute of Physics, 2004-04-15)The dynamics of polarization switching have been investigated over extremely broad time (10(-8)Conformal miniaturization of domains with low domain-wall energy: Monoclinic ferroelectric states near the morphotropic phase boundaries
(American Physical Society, 2003-11-07)A theory is developed for intermediate monoclinic (FEm) phases near morphotropic phase boundaries in ferroelectrics of complex oxides. It is based on the conformal miniaturization of stress-accommodating tetragonal domains ...Conformal sensor skin approach to the safety-monitoring of H-2 fuel tanks
(AIP Publishing, 2004-05-01)A conformal sensor skin approach has been developed for safety monitoring of H-2 fuel tanks. Small piezoelectrically driven sound resonance cavities were embedded in a porous polymer. When placed on a structural composite ...Connection between Carbon Incorporation and Growth Rate for GaN Epitaxial Layers Prepared by OMVPE
(MDPI, 2019-08-01)Carbon, a compensator in GaN, is an inherent part of the organometallic vapor phase epitaxy (OMVPE) environment due to the use of organometallic sources. In this study, the impact of growth conditions are explored on the ...Control of magnetic and electric responses with electric and magnetic fields in magnetoelectric heterostructures
(AIP Publishing, 2010-05-01)This paper reports on the tuning of both magnetic and electric responses with electric and magnetic fields for metglas-Pb(Zr,Ti)O(3) based magnetoelectric (ME) heterostructures that can be promising for communication and ...Controlled growth of epitaxial BiFeO3 films using self-assembled BiFeO3-CoFe2O4 multiferroic heterostructures as a template
(AIP Publishing, 2012-07-01)The growth mechanism of a BiFeO3 layer deposited on self assembled (0.65) BiFeO3-(0.35) CoFe2O4 (BFO-CFO) composite thin films was studied. Epitaxial and self-assembled BFO-CFO thin films were deposited on SrTiO3 (111) ...Converse magnetoelectric effects in composites of liquid phase epitaxy grown nickel zinc ferrite films and lead zirconate titanate: Studies on the influence of ferrite film parameters
(2019-04-09)The interactions between electric and magnetic subsystems in a ferroelectric-ferromagnetic composite occur through mechanical forces. Here we discuss results of a systematic investigation on the strength of the magnetic ...Correlation between non-180 degrees domain structures in (1-x)PbA(1/3)Nb(2/3)O(3)-xPbTiO(3) single crystals (A=Mg or Zn) under an applied 001 electric field
(American Institute of Physics, 2007-07-15)This work is devoted to the study of heterophase states in (1-x)PbA(1/3)Nb(2/3)O(3)-xPbTiO(3) or PAN-xPT (A=Mg or Zn) single crystals under an electric field E parallel to[001]. The possibility of elastically matched phases ...Correlation between structural deformation and magnetoelectric response in (1-x) Pb(Zr0.52Ti0.48)O-3-xNiFe(1.9)Mn(0.1)O(4) particulate composites
(AIP Publishing, 2007-10-01)The ferroelectric, ferromagnetic, and magnetoelectric properties of (1- x) Pb( Zr0.52Ti0.48)O-3 - xNiFe(1.9)Mn(0.1)O(4) (PZT- NFM) ceramic composites were found to be dependent upon postsinter annealing and aging. It was ...A critical review of the current knowledge regarding the biological impact of nanocellulose
(2016-12-01)Several forms of nanocellulose, notably cellulose nanocrystals and nanofibrillated cellulose, exhibit attractive property matrices and are potentially useful for a large number of industrial applications. These include the ...Crystallographic direction dependence of direct current field induced strain and phase transitions in Na0.5Bi0.5TiO3-x%BaTiO3 single crystals near the morphotropic phase boundary
(AIP Publishing, 2012-10-01)The crystallographic dependence of the DC electric (E) field induced strain and phase transition in Na0.5Bi0.5TiO3-5.6%BaTiO3 (NBT-5.6%BT) single crystals has been investigated. An induced transition between pseudocubic ...Damped soft phonons and diffuse scattering in 40%Pb(Mg1/3Nb2/3)O-3-60%PbTiO3
(American Physical Society, 2006-02-13)Using neutron elastic and inelastic scattering and high-energy x-ray diffraction, we present a comparison of 40% Pb(Mg1/3Nb2/3)O-3-60% PbTiO3 (PMN-60PT) with pure Pb(Mg1/3Nb2/3)O-3 (PMN) and PbTiO3 (PT). We measure the ...
