João P. Araújo

Overview

Best Publications

• Superparamagnetic MFe2O4 (M = Fe, Co, Mn) Nanoparticles: Tuning the Particle Size and Magnetic Properties through a Novel One-Step Coprecipitation Route

  Clara Pereira;André M. Pereira;Carlos Fernandes;Mariana Rocha

  539
  Citations

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

  V. A. Khomchenko;D. A. Kiselev;J. M. Vieira;Li Jian

  331
  Citations

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

  Susana L. H. Rebelo;Alexandra Guedes;Monika E. Szefczyk;André M. Pereira

  311
  Citations

• Nanoporous alumina as templates for multifunctional applications

  C. T. Sousa;D. C. Leitao;M. P. Proenca;J. Ventura

  287
  Citations

• Observation of a Griffiths-like Phase in the Magnetocaloric Compound Tb 5 Si 2 Ge 2

  C. Magen;P. A. Algarabel;L. Morellon;J. P. Araújo

  258
  Citations

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

  J.S. Amaral;M.S. Reis;V.S. Amaral;T.M. Mendonça

  233
  Citations

• Doping strategies for increased performance in BiFeO3

  V.A. Khomchenko;D.A. Kiselev;M. Kopcewicz;M. Maglione

  220
  Citations

• Magnetic Nanomaterials as Contrast Agents for MRI.

  Sofia Caspani;Ricardo Magalhães;João Pedro Araújo;Célia Tavares Sousa

  204
  Citations

• Designing novel hybrid materials by one-pot co-condensation: from hydrophobic mesoporous silica nanoparticles to superamphiphobic cotton textiles

  C. Pereira;C. Alves;A. Monteiro;C. Magén

  180
  Citations

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

  L. G. Vivas;M. Vazquez;J. Escrig;S. Allende

  179
  Citations

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

  Mariana P. Proenca;Mariana P. Proenca;Célia T. Sousa;André M. Pereira;Pedro B. Tavares

  177
  Citations

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

  I. O. Troyanchuk;D. V. Karpinsky;M. V. Bushinsky;V. A. Khomchenko

  166
  Citations

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

  Clara Pereira;André M. Pereira;Pedro Quaresma;Pedro Quaresma;Pedro B. Tavares

  158
  Citations

• Spin-phonon coupling and magnetoelectric properties: EuMnO 3 versus GdMnO 3

  W. S. Ferreira;J. Agostinho Moreira;A. Almeida;M. R. Chaves

  158
  Citations

• Intrinsic nature of the magnetization enhancement in heterovalently doped Bi1−xAxFeO3 (A = Ca, Sr, Pb, Ba) multiferroics

  V A Khomchenko;M Kopcewicz;A M L Lopes;Y G Pogorelov

  135
  Citations

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

  j. azevedo;L. Steier;P. Dias;M. Stefik

  134
  Citations

• Superhard CrN/MoN coatings with multilayer architecture

  A.D. Pogrebnjak;V.M. Beresnev;O.V. Bondar;B.O. Postolnyi;B.O. Postolnyi

  130
  Citations

• Magnetic entropy change ofPr1−xCaxMnO3manganites(0.2⩽x⩽0.95)

  M. S. Reis;V. S. Amaral;J. P. Araújo;P. B. Tavares

  119
  Citations

• Weak ferromagnetism in diamagnetically-doped Bi1 − xAxFeO3 (A = Ca, Sr, Pb, Ba) multiferroics

  V.A. Khomchenko;D.A. Kiselev;E.K. Selezneva;J.M. Vieira

  118
  Citations

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

  Pedro Quaresma;Pedro Quaresma;Inês Osório;Gonçalo Dória;Patrícia A. Carvalho

  116
  Citations

• New phase transition in the Pr1-xCaxMnO3 system: evidence for electrical polarization in charge ordered manganites.

  A. M. L. Lopes;A. M. L. Lopes;A. M. L. Lopes;J. P. Araújo;V. S. Amaral;J. G. Correia

  112
  Citations