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Mostrando ítems 161-170 de 252
Room temperature ferromagnetism and ferroelectricity in strained multiferroic BiFeO3 thin films on La0.7Sr0.3MnO3/SiO2/Si substrates
(Elsevier B.V, 2017-04)
"A novel ferromagnetic state coexisting with ferroelectric ordering at room temperature in strained BiFeO3 (BFO) thin films grown using a sputtering technique on La0.7Sr0.3MnO3/SiO2/Si(100) (LSMO/SOS) substrates is reported. ...
Transformation behavior and magnetocaloric effect in Mn1−xCrxCoGe (x = 0.04 and 0.11) melt-spun ribbons tailored by heat treatment
(Elsevier, 2017-12)
"Recently, MnNiGe and MnCoGe intermetallic compounds have received a considerable attention due to the coupled tunable martensitic and magnetic transitions as well as giant magnetocaloric effect (MCE) they exhibit. In this ...
Enhanced magnetocaloric effect tuning efficiency in Ni-Mn-Sn alloy ribbons
(Elsevier B.V., 2017-11)
"The present work was undertaken to investigate the effect of microstructure on the magnetic entropy change of Ni50Mn37Sn13 ribbon alloys. Unchanged sample composition and cell parameter of austenite allowed us to study ...
Magnetocaloric properties of rapidly solidified Dy3Co alloy ribbons
(2015-05)
"The magnetic and magnetocaloric (MC) properties of melt-spun ribbons of the Dy3Co intermetallic compound were investigated. Samples were fabricated in an Ar environment using a homemade melt spinner system at a linear ...
Structural and magnetic characterization of the intermartensitic phase transition in NiMnSn Heusler alloy ribbons
(2013-05)
"Phase transitions and structural and magnetic properties of rapidly solidified Ni50Mn38Sn12 alloy ribbons have been studied. Ribbon samples crystallize as a single-phase, ten-layered modulated (10M) monoclinic martensite ...
High-magnetic field characterization of magnetocaloric effect in FeZrB(Cu) amorphous ribbons
(2015-05)
"The magnetic and magnetocaloric properties of a series of Fe-rich FeZrB(Cu) amorphous ribbons were investigated under magnetic field values up to mu H-0 of 8 T. A correlation between the saturation magnetization and the ...
Near UV-blue excitable green-emitting nanocrystalline oxide
(Hindawi, 2011)
"Green-emitting Eu-activated powders were produced by a two-stage method consisting of pressure-assisted combustion synthesis and postannealing in ammonia. The as-synthesized powders exhibited a red photoluminescence (PL) ...
Magnetic entropy change and refrigerant capacity of rapidly solidified TbNi2 alloy ribbons
(2013-05)
"The magnetocaloric effect in TbNi2 alloy ribbons synthesized by rapid solidification was investigated. This material crystallizes in a superstructure of the cubic Laves phase structure type C15 (space group F-43m). The ...
Magnetostructural transition and magnetocaloric effect in MnNiGe1.05 melt-spun ribbons
(2014-05)
"Alloy ribbons of nominal composition MnNiGe1.05 were produced using the melt-spinning technique. As-quenched (aq) polycrystalline ribbons are single-phase showing the hexagonal Ni2In-type crystal structure. After thermal ...
Elastocaloric and magnetocaloric effects in Ni-Mn-Sn(Cu) shape-memory alloy
(2013-02)
"We have studied magnetocaloric and elastocaloric properties of a Ni-Mn-Sn(Cu) metamagnetic shape-memory alloy undergoing a magneto-structural transition (martensitic type) close to room temperature. Changes of entropy ...