João P. Araújo

Research interests

Publications

• Magnetic Nanomaterials as Contrast Agents for MRI

  Materials · 2020 · 10.3390/ma13112586

• Magnetocaloric materials: From micro- to nanoscale

  Journal of materials research/Pratt's guide to venture capital sources · 2018 · 10.1557/jmr.2018.352

• Superhard CrN/MoN coatings with multilayer architecture

  Materials & Design · 2018 · 10.1016/j.matdes.2018.05.001

• Multilayer design of CrN/MoN protective coatings for enhanced hardness and toughness

  Journal of Alloys and Compounds · 2017 · 10.1016/j.jallcom.2017.07.010

• Progress in the Raman spectra analysis of covalently functionalized multiwalled carbon nanotubes: unraveling disorder in graphitic materials

  Physical Chemistry Chemical Physics · 2016 · https://doi.org/10.1039/c5cp06519d

• Tin oxide as stable protective layer for composite cuprous oxide water-splitting photocathodes

  Nano Energy · 2016 · 10.1016/j.nanoen.2016.03.022

• Nanoporous alumina as templates for multifunctional applications

  Applied Physics Reviews · 2014 · https://doi.org/10.1063/1.4893546

• On the stability enhancement of cuprous oxide water splitting photocathodes by low temperature steam annealing

  Energy & Environmental Science · 2014 · https://doi.org/10.1039/c4ee02160f

• Star-shaped magnetite@gold nanoparticles for protein magnetic separation and SERS detection

  RSC Advances · 2013 · 10.1039/c3ra46762g

• Magnetic interactions and reversal mechanisms in Co nanowire and nanotube arrays

  Journal of Applied Physics · 2013 · 10.1063/1.4794335

• Magnetic anisotropy in CoNi nanowire arrays: Analytical calculations and experiments

  Physical Review B · 2012 · https://doi.org/10.1103/physrevb.85.035439

• Superparamagnetic MFe 2 O 4 (M = Fe, Co, Mn) Nanoparticles: Tuning the Particle Size and Magnetic Properties through a Novel One-Step Coprecipitation Route

  Chemistry of Materials · 2012 · https://doi.org/10.1021/cm300301c

• Solid state magnetic refrigerator

  Applied Energy · 2011 · 10.1016/j.apenergy.2011.12.002

• Size and surface effects on the magnetic properties of NiO nanoparticles

  Physical Chemistry Chemical Physics · 2011 · https://doi.org/10.1039/c1cp00036e

• Isothermal structural transitions, magnetization and large piezoelectric response in Bi 1−x La x FeO 3 perovskites

  Physical Review B · 2011 · https://doi.org/10.1103/physrevb.83.054109

• Designing Novel Hybrid Materials by One-Pot Co-condensation: From Hydrophobic Mesoporous Silica Nanoparticles to Superamphiphobic Cotton Textiles

  ACS Applied Materials & Interfaces · 2011 · 10.1021/am200220x

• Superparamagnetic γ-Fe2O3@SiO2 nanoparticles: a novel support for the immobilization of [VO(acac)2]

  Dalton Transactions · 2010 · 10.1039/b920853d

• Rhombohedral-to-orthorhombic transition and multiferroic properties of Dy-substituted BiFeO3

  Journal of Applied Physics · 2010 · 10.1063/1.3486500

• Spin-phonon coupling and magnetoelectric properties: EuMnO3 versus GdMnO3

  Physical Review B · 2009 · 10.1103/physrevb.79.054303

• Doping strategies for increased performance in BiFeO3

  Journal of Magnetism and Magnetic Materials · 2009 · 10.1016/j.jmmm.2009.02.008

• New Phase Transition in the Pr 1 − x Ca x MnO 3 System: Evidence for Electrical Polarization in Charge Ordered Manganites

  Physical Review Letters · 2008 · 10.1103/physrevlett.100.155702

• Effect of diamagnetic Ca, Sr, Pb, and Ba substitution on the crystal structure and multiferroic properties of the BiFeO3 perovskite

  Journal of Applied Physics · 2008 · https://doi.org/10.1063/1.2836802

• Intrinsic nature of the magnetization enhancement in heterovalently doped Bi 1− x A x FeO 3 ( A = Ca, Sr, Pb, Ba) multiferroics

  Journal of Physics D Applied Physics · 2008 · 10.1088/0022-3727/41/10/102003

• Observation of a Griffiths-like Phase in the Magnetocaloric Compound Tb5Si2Ge2

  Physical Review Letters · 2006 · 10.1103/physrevlett.96.167201

• Magnetocaloric effect in Er- and Eu-substituted ferromagnetic La-Sr manganites

  Journal of Magnetism and Magnetic Materials · 2004 · 10.1016/j.jmmm.2004.11.337

Current projects

No projects listed.