Search Results - "Dkhil, Brahim"
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Control of the shape and size of iron oxide (α-Fe2O3) nanoparticles synthesized through the chemical precipitation method
Published in Results in physics (2017)“…[Display omitted] •α-Fe2O3 nanoparticles were synthesized through chemical precipitation method.•Crystallite size was identified through XRD analysis.•TEM and…”
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Strong electrocaloric effect in lead-free 0.65Ba(Zr0.2Ti0.8)O3-0.35(Ba0.7Ca0.3)TiO3 ceramics obtained by direct measurements
Published in Applied physics letters (09-02-2015)“…Solid solutions of (1 − x)Ba(Zr0.2Ti0.8)O3-x(Ba0.7Ca0.3)TiO3 promise to exhibit a large electrocaloric effect (ECE), because their Curie temperature and a…”
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Electrostrain in excess of 1% in polycrystalline piezoelectrics
Published in Nature materials (01-05-2018)“…Piezoelectric actuators transform electrical energy into mechanical energy, and because of their compactness, quick response time and accurate displacement,…”
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Enhanced electrocaloric effect in lead-free BaTi1−xSnxO3 ceramics near room temperature
Published in Applied physics letters (08-09-2014)“…The electrocaloric effect in lead-free BaTi1−xSnxO3 (BTSn, x = 0.08, 0.105, and 0.14) ferroelectric ceramics was studied by using an indirect method. It was…”
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A rhombohedral ferroelectric phase in epitaxially strained Hf0.5Zr0.5O2 thin films
Published in Nature materials (01-12-2018)“…Hafnia-based thin films are a favoured candidate for the integration of robust ferroelectricity at the nanoscale into next-generation memory and logic devices…”
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Giant Negative Electrocaloric Effect in Antiferroelectric La-Doped Pb(ZrTi)O3 Thin Films Near Room Temperature
Published in Advanced materials (Weinheim) (27-05-2015)“…Antiferroelectric thin films are demonstrated as a new class of giant electrocaloric materials that exhibit a negative electrocaloric response of about −5 K…”
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Enhanced electrocaloric effect near polymorphic phase boundary in lead-free potassium sodium niobate ceramics
Published in Applied physics letters (06-02-2017)“…The electrocaloric (EC) effect in lead-free (1-x)(K0.48Na0.52)(Nb0.95Sb0.05)O3-xBi0.5(Na0.82K0.18)0.5ZrO3 ceramics was investigated using an indirect…”
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Size Effect on Optical and Photocatalytic Properties in BiFeO3 Nanoparticles
Published in Journal of physical chemistry. C (25-02-2016)“…In this work we study the influence of grain and particle size on the structural and optical properties of BiFeO3 (BFO) nanoparticles and the resulting…”
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Emerging spin–phonon coupling through cross-talk of two magnetic sublattices
Published in Nature communications (21-01-2022)“…Many material properties such as superconductivity, magnetoresistance or magnetoelectricity emerge from the non-linear interactions of spins and…”
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Large reversible caloric effect in FeRh thin films via a dual-stimulus multicaloric cycle
Published in Nature communications (19-05-2016)“…Giant magnetocaloric materials are promising for solid-state refrigeration, as an alternative to hazardous gases used in conventional cooling devices. A giant…”
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Dielectric Response: Answer to Many Questions in the Methylammonium Lead Halide Solar Cell Absorbers
Published in Advanced energy materials (11-10-2017)“…Due to the unprecedented rapid increase of their power conversion efficiency, hybrid organic–inorganic perovskites CH3NH3PbX3 (X = I, Br, Cl) can potentially…”
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Photostriction in Ferroelectrics from Density Functional Theory
Published in Physical review letters (13-06-2016)“…An ab initio procedure allowing the computation of the deformation of ferroelectric-based materials under light is presented. This numerical scheme consists in…”
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Dislocations and a domains coupling in PbTiO3 thin films
Published in Applied physics letters (13-11-2023)“…The interaction of domain structure and defects in ferroelectric thin films has been studied for decades. However, the role of dislocations and thermal…”
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Great multiferroic properties in BiFeO3/BaTiO3 system with composite-like structure
Published in Applied physics letters (10-04-2023)“…Multiferroic materials have attracted significant research attention due to their technological potential for applications as multifunctional devices. The…”
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Giant electrocaloric effect in lead-free Ba0.94Ca0.06Ti1−xSnxO3 ceramics with tunable Curie temperature
Published in Applied physics letters (21-12-2015)“…Electrocaloric effect in lead-free Ba0.94Ca0.06Ti1−xSnxO3 ceramics is studied using an indirect method. The Ba0.94Ca0.06Ti0.875Sn0.125O3 ceramic located near a…”
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Giant ultrafast photo-induced shear strain in ferroelectric BiFeO3
Published in Nature communications (01-07-2014)“…Generation of strain using light is a key issue for future development of ultrasonic devices. Up to now, photo-induced GHz–THz acoustic phonons have been…”
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Postsynthetic Approach for the Rational Design of Chiral Ferroelectric Metal–Organic Frameworks
Published in Journal of the American Chemical Society (21-06-2017)“…Ferroelectrics (FEs) are materials of paramount importance with a wide diversity of applications. Herein, we propose a postsynthetic methodology for the smart…”
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High Proton Conduction in a Chiral Ferromagnetic Metal–Organic Quartz-like Framework
Published in Journal of the American Chemical Society (05-10-2011)“…A complex-as-ligand strategy to get a multifunctional molecular material led to a metal–organic framework with the formula (NH4)4[MnCr2(ox)6]·4H2O…”
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Direct measurement of electrocaloric effect in lead-free Ba(SnxTi1-x)O3 ceramics
Published in Applied physics letters (23-10-2017)“…In this study, we report on investigation of the electrocaloric (EC) effect in lead-free Ba(SnxTi1-x)O3 (BSnT) ceramics with compositions in the range of 0.08…”
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Relativistic interaction Hamiltonian coupling the angular momentum of light and the electron spin
Published in Physical review. B, Condensed matter and materials physics (11-09-2015)“…On the basis of the Dirac equation, a relativistic interaction Hamiltonian is derived which linearly couples the angular momentum density j of the…”
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