| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Ventura, Joao
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (38/38 displayed)
- 2019Tuning electrical and thermoelectric properties of freestanding graphene oxide papers by carbon nanotubes and heat treatmentcitations
- 2017Bipolar resistive switching in Si/Ag nanostructurescitations
- 2017Unipolar Nonvolatile Resistive Switching in Pt/MgO/Ta/Ru Structures Deposited by Magnetron Sputteringcitations
- 2017Facile synthesis of well dispersed Pd nanoparticles on reduced graphene oxide for electrocatalytic oxidation of formic acidcitations
- 2017Positron annihilation lifetime, cation distribution and magnetic features of Ni1-xZnxFe2-xCoxO4 ferrite nanoparticlescitations
- 2017Tailoring Bi-Te based nanomaterials by electrodeposition: Morphology and crystalline structurecitations
- 2016Thin film versus paper-like reduced graphene oxide: Comparative study of structural, electrical, and thermoelectrical propertiescitations
- 2016Facile synthesis of reduced graphene oxide supported Pd@NixB/RGO nanocomposite: Novel electrocatalyst for ethanol oxidation in alkaline mediacitations
- 2016Electrodeposition of ZnO thin films on conducting flexible substratescitations
- 2016Green and facile decoration of Fe3O4 nanoparticles on reduced graphene oxidecitations
- 2016Facile synthesis of Co/RGO nanocomposite for methylene blue dye removalcitations
- 2016Tuning the Stoichiometry of Ag2S Thin Films for Resistive Switching Applicationscitations
- 2016Femtosecond control of electric currents in metallic ferromagnetic heterostructurescitations
- 2016Novel synthesis of highly catalytic active Cu@Ni/RGO nanocomposite for efficient hydrogenation of 4-nitrophenol organic pollutantcitations
- 2016Reduced graphene oxide-nickel nanoparticles/biopolymer composite films for the sub-millimolar detection of glucosecitations
- 2016Facile synthesis of novel Co-B@Ni/RGO nanocomposite: A cost effective catalyst for improved hydrogen generation with enhanced electrochemical activitycitations
- 2015Synthesis, structural and magnetic characterization of lead-metaniobate/cobalt-ferrite nanocomposite films deposited by pulsed laser ablationcitations
- 2015Novel synthesis of Ag@Co/RGO nanocomposite and its high catalytic activity towards hydrogenation of 4-nitrophenol to 4-aminophenolcitations
- 2015Reduction of 4-nitrophenol to 4-aminophenol using a novel Pd@NixB-SiO2/RGO nanocomposite: enhanced hydrogen spillover and high catalytic performancecitations
- 2015Synthesis of Ni(OH)(2)@Ni/RGO nanocomposite: formulation of one dimensional arraycitations
- 2015Unusual extraction and characterization of nanocrystalline cellulose from cellulose derivativescitations
- 2015Drastic modification of graphene oxide properties by incorporation of nickel: a simple inorganic chemistry approachcitations
- 2015Synthesis and characterization of Graphene/Nickel nanocomposites:The role of reducing agent on nanoparticle size and morphology
- 2014Ultra-long Fe nanowires by pulsed electrodeposition with full filling of alumina templatescitations
- 2013Correlations among magnetic, electrical and magneto-transport properties of NiFe nanohole arrayscitations
- 2013Conductivity enhancement and resistance changes in polymer films filled with reduced graphene oxidecitations
- 2013Influence of Process Parameters on the RF Sputtered GaP Thin Filmscitations
- 2013Electrical conductivity of LTA-zeolite in the presence of poly(vinyl alcohol) and poly(vinyl pyrrolidone) polymerscitations
- 2012Precise control of the filling stages in branched nanoporescitations
- 2011The influence of argon pressure and RF power on the growth of InP thin filmscitations
- 2011Tunning pore filling of anodic alumina templates by accurate control of the bottom barrier layer thicknesscitations
- 2011Resonant Tunneling through Electronic Trapping States in Thin MgO Magnetic Junctionscitations
- 2010High-Field Magnetoresistance of La0.67Sr0.33MnO3 Thin Films Deposited on LiNbO3 Substratescitations
- 2010Novel Layer-by-Layer Interfacial [Ni(salen)]-Polyelectrolyte Hybrid Filmscitations
- 2009The effect of pinhole formation/growth on the tunnel magnetoresistance of MgO-based magnetic tunnel junctionscitations
- 2009Electroforming, magnetic and resistive switching in MgO-based tunnel junctionscitations
- 2008Structural, magnetic and transport properties of ion beam deposited Co thin filmscitations
- 2004Peculiar magnetic and electrical properties near structural percolation in metal-insulator granular layerscitations
Places of action
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article
The effect of pinhole formation/growth on the tunnel magnetoresistance of MgO-based magnetic tunnel junctions
Abstract
In this study, we focus on how the formation and enlargement of metallic pinholes in MgO barriers (induced by large electrical currents) affect the tunnel magnetoresistance (TMR) of low and high resistance (R) magnetic tunnel junctions. The junctions were deposited by physical vapor deposition with barrier thicknesses of either 0.75 or 1.35 nm. For the parallel state, temperature-dependent R(T) measurements readily revealed a metallic conductance in the low-R sample, indicating that pinholes are already present in its thin barrier; a slight R(T) decrease with increasing temperature is observed for the high-R junction. After applying large current pulses to the low-R sample, we observe that the initially small R-decrease (similar to 6%) is accompanied by a significant TMR increase (similar to 20% at 20 K). Higher applied electrical currents continue to decrease R, leading to a gradual but steady TMR decrease. In contrast, the high-R sample exhibits a sharp and immediate decrease in TMR as soon as the first pinhole is formed. The origin of these effects will be discussed in terms of a thermally induced improvement of the barrier/electrode interfaces and the possibility of a magnetoresistance mechanism occurring through the metallic pinholes. (c) 2009 American Institute of Physics. [doi:10.1063/1.3236512]