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Comparison of DC and AC field effects on dielectric properties of lead magnesium niobate relaxor: Study of single crystals and ceramics

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A pair of ground planes arranged in parallel, a dielectric medium disposed in between the pair of ground planes, and a set of at least four signal conductors disposed in the dielectric medium, the set of at least four signal conductors having (i) a first p ...

2016

The dielectric permittivity (epsilon') of a polymeric material can be significantly increased when blended with conductive fillers at concentrations approaching the percolation threshold. However, reproducible synthesis of such composites is after decades ...

Royal Society of Chemistry2015

Effect of silane coupling agent on the morphology, structure, and properties of poly(vinylidene fluoride-trifluoroethylene)/BaTiO3 composites

Véronique Michaud, Yves Leterrier, Dragan Damjanovic, Sara Dalle Vacche

Micron- and submicron-sized barium titanate (BaTiO3) particles, untreated and surface modified with aminopropyl triethoxy silane, were incorporated in poly(vinylidene fluoride-trifluoroethylene) to fabricate composites with up to 60 vol% of ceramic phase. ...

Springer Verlag2014

BiFeO3 Ceramics: Processing, Electrical, and Electromechanical Properties

Dragan Damjanovic

Bismuth ferrite (BiFeO3), a perovskite material, rich in properties and with wide functionality, has had a marked impact on the field of multiferroics, as evidenced by the hundreds of articles published annually over the past 10 years. Studies from the ver ...

Wiley-Blackwell2014

Infrared phonon modes in multiferroic single-crystal FeTe2O5Br

Helmuth Berger

Reflection and transmission as a function of temperature (7-300 K and 5-300 K respectively) have been measured on single crystals of the multiferroic compound FeTe2O5Br utilizing light spanning from the far infrared to the visible. The complex dielectric f ...

Amer Physical Soc2013

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Dielectric and piezoelectric properties of K(Ta0.51Nb0.49)O3 [KTN] single crystals along [100], [001] and [011] pseudo-cubic crystallographic orientations are reported and discussed. Temperature dependencies of dielectric permittivity in tetragonal phase o ...

Taylor & Francis2012

Microstructure and dielectric properties of piezoelectric magnetron sputtered w-ScxAl1-xN thin films

Paul Muralt, Ramin Matloub Aghdam

Piezoelectric wurtzite ScxAl1-xN (x = 0, 0.1, 0.2, 0.3) thin films were epitaxially grown by reactive magnetron co-sputtering from elemental Sc and Al targets. Al2O3(0001) wafers with TiN(111) seed and electrode layers were used as substrates. X-ray diffra ...

American Institute of Physics2012

Dielectric properties of K(Ta0.53Nb0.47)O-3 Single Crystal

Nava Setter, Petr Bednyakov, Daniel Rytz

Dielectric properties of K(Ta0,53Nb0,47)O-3 [KTN] single crystals with < 100 > and < 011 > crystallographic orientation were studied. Temperature dependencies of dielectric permittivity of monodomain and polydomain crystals of these orientations are compar ...

Ieee2012

Dielectric properties of K(Ta0.55Nb0.45)O-3 Single Crystal

Nava Setter, Petr Bednyakov, Daniel Rytz

Dielectric properties of K(Ta0,55Nb0,45)O-3 [KTN] single crystals with < 100 > and < 011 > crystallographic orientation were studied. Temperature dependencies of dielectric permittivity of monodomain and polydomain crystals of these orientations are compar ...

Ieee2012

Lead-Free Relaxor-Like 0.75Bi0.5K0.5TiO3– 0.25BiFeO3 Ceramics with Large Electric Field-Induced Strain

Dragan Damjanovic

Dense and phase-pure ferroelectric ceramics of 75 mol.% Bi0.5K0.5TiO3 - 25 mol.% BiFeO3 are prepared by the conventional solid state reaction method. Their crystal structure is analyzed and discussed. The dielectric and piezoelectric properties of the cera ...

Taylor & Francis2012