Browsing Faculty Works, Materials Science and Engineering (MSE) by Title
Now showing items 169-188 of 362
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Kinetics and thermodynamics of the ferroelectric transitions in PbMg1/3Nb2/3O3 and PbMg1/3Nb2/3O3-12% PbTiO3 crystals
(American Institute of Physics, 2013-05-14)The two-step freezing and melting of the field-induced ferroelectric order in PbMg1/3Nb2/3O3 (PMN) and (PbMg1/3Nb2/3O3)(0.88)(PbTiO3)(0.12) (PMN-PT) is investigated. In PMN-PT, direct microscopic images show that both steps ... -
Large field-induced-strain at high temperature in ternary ferroelectric crystals
(Springer Nature, 2016-10-13)The new generation of ternary Pb(In1/2Nb1/2)O-3-Pb(Mg1/3Nb2/3)O-3-PbTiO3 ferroelectric single crystals have potential applications in high power devices due to their surperior operational stability relative to the binary ... -
Large magnetoelectric susceptibility: The fundamental property of piezoelectric and magnetostrictive laminated composites
(American Institute of Physics, 2007-01-01)The magnetoelectric (ME) susceptibility (alpha(me)) is the fundamental property that describes the coupling between the polarization and magnetization of a ME media. It is a complex quantity (alpha(*)(me)) which has rarely ... -
Laser-assisted low temperature processing of Pb(Zr, Ti)O-3 thin film
(AIP Publishing, 1998-10-01)A method for lowering the processing temperature of PbZr1-xTixO3 films was developed utilizing a laser- assisted two- step process. In the first step, perovskite phase was initiated in the PZT films to a furnace anneal at ... -
Layer-by-layer self-assembled conductor network composites in ionic polymer metal composite actuators with high strain response
(AIP Publishing, 2009-07-01)We investigate the electromechanical response of conductor network composite (CNC) fabricated by the layer-by-layer (LbL) self-assembly method. The process makes it possible for CNCs to be fabricated at submicron thickness ... -
Lead-free and lead-based ABO(3) perovskite relaxors with mixed-valence A-site and B-site disorder: comparative neutron scattering structural study of (Na1/2Bi1/2) TiO3 and Pb(Mg1/3Nb2/3)O-3
(American Physical Society, 2013-11-01)We report the results of neutron elastic-scattering measurements made between -250 degrees C and 620 degrees C on the lead-free relaxor (Na1/2Bi1/2)TiO3 (NBT). Strong, anisotropic, elastic diffuse scattering intensity ... -
Least‐squares analysis of x‐ray diffraction line shapes with analytic functions
(American Institute of Physics, 1981)This is a second paper of a sequence that provides a useful analytic function which is based upon the Warren‐Averbach line shape analysis. Once the Fourier coefficients are interrelated in terms of a minimum number of ... -
Light-current characteristic of a quantum well laser with asymmetric barrier layers
(American Institute of Physics, 2013-10-14)Light-current characteristic (LCC) of a novel type of quantum well (QW) lasers-QW lasers with asymmetric barrier layers (ABLs)-is studied. The ABLs (one on each side of the QW) prevent electrons from entering the hole-injecting ... -
Limitations on standard procedure of determining internal loss and efficiency in quantum dot lasers
(American Institute of Physics, 2006-01-01)Limitations are discussed on the use in quantum dot (QD) lasers of the conventional method of determining internal loss coefficient alpha(int) and internal quantum efficiency eta(int) from a measured plot of the reciprocal ... -
Linear grain growth kinetics and rotation in nanocrystalline Ni
(American Physical Society, 2007-04-20)We report three-dimensional atomistic molecular dynamics studies of grain growth kinetics in nanocrystalline Ni. The results show the grain size increasing linearly with time, contrary to the square root of the time kinetics ... -
Long Period Gratings in Random Hole Optical Fibers for Refractive Index Sensing
(Mdpi Ag, 2011-02-01)We have demonstrated the fabrication of long period gratings in random hole optical fibers. The long period gratings are fabricated by a point-by-point technique using a CO2 laser. The gratings with a periodicity of 450 ... -
A longitudinal-longitudinal mode TERFENOL-D/Pb(Mg1/3Nb2/3)O-3-PbTiO3 laminate composite
(AIP Publishing, 2004-11-01)We have found that laminates of longitudinally magnetized magnetostrictive TERFENOL-D layersand a longitudinally poled piezoelectric Pb(Mg1/3Nb2/3)O-3-PbTiO3 crystal have a giant magnetoelectric voltage coefficient of >430 ... -
A Low Frequency Mechanical Transmitter Based on Magnetoelectric Heterostructures Operated at Their Resonance Frequency
(MDPI, 2019-02-19)Magneto-elasto-electric (ME) coupling heterostructures, consisting of piezoelectric layers bonded to magnetostrictive ones, provide for a new class of electromagnetic emitter materials on which a portable (area ~ 16 ... -
Low symmetry phase in (001) BiFeO3 epitaxial constrained thin films
(AIP Publishing, 2005-05-01)The lattice of (001)-oriented BiFeO3 epitaxial thin film has been identified by synchrotron x-ray diffraction. By choosing proper scattering zones containing the fixed (001) reflection, we have shown that low-symmetry ... -
Low symmetry phase in Pb(Zr0.52Ti0.48)O-3 epitaxial thin films with enhanced ferroelectric properties
(AIP Publishing, 2006-12-01)The authors report the structural and ferroelectric properties of Pb(Zr0.52Ti0.48)O-3 (PZT) epitaxial thin films grown on (001), (110), and (111) SrRuO3/SrTiO3 substrates by pulsed laser deposition. A monoclinic C (M-c) ... -
Low temperature processed 0.7SrBi(2)Ta(2)O(9)-0.3Bi(3)TaTiO(9) thin films fabricated on multilayer electrode-barrier structure for high-density ferroelectric memories
(AIP Publishing, 1999-10-01)Thin films of solid-solution material 0.7SrBi(2)Ta(2)O(9)-0.3Bi(3)TaTiO(9) (0.7SBT-0.3BTT) were fabricated on n(+)-polycrystalline (n(+)-poly) Si substrates by a metalorganic solution deposition technique at a low processing ... -
Low-cost sensor-integrated 3D-printed personalized prosthetic hands for children with amniotic band syndrome: A case study in sensing pressure distribution on an anatomical human-machine interface (AHMI) using 3D-printed conformal electrode arrays
(PLOS, 2019)Interfacing anatomically conformal electronic components, such as sensors, with biology is central to the creation of next-generation wearable systems for health care and human augmentation applications. Thus, there is a ... -
Low-frequency nanotesla sensitivity in Metglas/piezoelectric/carbon fiber/piezoelectric composites with active tip mass
(AIP Publishing, 2011-02-01)We report nanotesla sensitivity in Metglas/piezoelectric/carbon fiber/piezoelectric laminates with active tip mass operating in the vicinity of second bending mode. The peak magnetoelectric response for the laminate with ... -
Low-temperature metalorganic chemical vapor-deposition of perovskite PB(ZRXTI1-X)O3 thin-films
(AIP Publishing, 1992-07-01)Pb (ZrxTi1-x)O3 thin films with perovskite structure were successfully prepared on sapphire disks, Pt/Ti/SiO2/Si, and RuOx/SiO2/Si substrates at temperatures as low as 550-degrees-C by hot-wall metalorganic chemical vapor ...
