J. P. Araújo
J. P. Araújo
Departamento de Fisica e Astronomia, Universidade do Porto
Adresse e-mail validée de fc.up.pt
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Effect of diamagnetic Ca, Sr, Pb, and Ba substitution on the crystal structure and multiferroic properties of the perovskite
VA Khomchenko, DA Kiselev, JM Vieira, L Jian, AL Kholkin, AML Lopes, ...
Journal of Applied Physics 103 (2), 024105, 2008
3322008
Superparamagnetic MFe2O4 (M = Fe, Co, Mn) Nanoparticles: Tuning the Particle Size and Magnetic Properties through a Novel One-Step Coprecipitation Route
C Pereira, AM Pereira, C Fernandes, M Rocha, R Mendes, ...
Chemistry of Materials 24 (8), 1496-1504, 2012
3272012
Nanoporous alumina as templates for multifunctional applications
CT Sousa, DC Leitao, MP Proenca, J Ventura, AM Pereira, JP Araujo
Applied Physics Reviews 1 (3), 031102, 2014
2092014
Observation of a Griffiths-like Phase in the Magnetocaloric Compound Tb 5 Si 2 Ge 2
C Magen, PA Algarabel, L Morellon, JP Araújo, C Ritter, MR Ibarra, ...
Physical review letters 96 (16), 167201, 2006
1882006
Doping strategies for increased performance in BiFeO 3
VA Khomchenko, DA Kiselev, M Kopcewicz, M Maglione, VV Shvartsman, ...
Journal of Magnetism and Magnetic Materials 321 (11), 1692-1698, 2009
1862009
Magnetocaloric effect in Er-and Eu-substituted ferromagnetic La-Sr manganites
JS Amaral, MS Reis, VS Amaral, TM Mendonca, JP Araujo, MA Sa, ...
Journal of magnetism and magnetic materials 290, 686-689, 2005
1682005
Progress in the Raman spectra analysis of covalently functionalized multiwalled carbon nanotubes: unraveling disorder in graphitic materials
SLH Rebelo, A Guedes, ME Szefczyk, AM Pereira, JP Araújo, C Freire
Physical Chemistry Chemical Physics 18 (18), 12784-12796, 2016
1572016
Magnetic anisotropy in CoNi nanowire arrays: analytical calculations and experiments
LG Vivas, M Vazquez, J Escrig, S Allende, D Altbir, DC Leitao, JP Araujo
Physical Review B 85 (3), 035439, 2012
1462012
Isothermal structural transitions, magnetization and large piezoelectric response in Bi 1− x La x FeO 3 perovskites
IO Troyanchuk, DV Karpinsky, MV Bushinsky, VA Khomchenko, ...
Physical Review B 83 (5), 054109, 2011
1332011
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 Magen, AM Pereira, A Ibarra, MR Ibarra, ...
ACS applied materials & interfaces 3 (7), 2289-2299, 2011
1252011
Size and surface effects on the magnetic properties of NiO nanoparticles
MP Proenca, CT Sousa, AM Pereira, PB Tavares, J Ventura, M Vazquez, ...
Physical Chemistry Chemical Physics 13 (20), 9561-9567, 2011
1212011
Spin-phonon coupling and magnetoelectric properties: EuMnO 3 versus GdMnO 3
WS Ferreira, JA Moreira, A Almeida, MR Chaves, JP Araújo, JB Oliveira, ...
Physical Review B 79 (5), 054303, 2009
1192009
Superparamagnetic γ-Fe 2 O 3@ SiO 2 nanoparticles: a novel support for the immobilization of [VO (acac) 2]
C Pereira, AM Pereira, P Quaresma, PB Tavares, E Pereira, JP Araújo, ...
Dalton Transactions 39 (11), 2842-2854, 2010
1102010
Intrinsic nature of the magnetization enhancement in heterovalently doped Bi1− xAxFeO3 (A= Ca, Sr, Pb, Ba) multiferroics
VA Khomchenko, M Kopcewicz, AML Lopes, YG Pogorelov, JP Araujo, ...
Journal of Physics D: Applied Physics 41 (10), 102003, 2008
1062008
Weak ferromagnetism in diamagnetically-doped Bi1− xAxFeO3 (A= Ca, Sr, Pb, Ba) multiferroics
VA Khomchenko, DA Kiselev, EK Selezneva, JM Vieira, AML Lopes, ...
Materials Letters 62 (12-13), 1927-1929, 2008
1052008
On the stability enhancement of cuprous oxide water splitting photocathodes by low temperature steam annealing
J Azevedo, L Steier, P Dias, M Stefik, CT Sousa, JP Araujo, A Mendes, ...
Energy & Environmental Science 7 (12), 4044-4052, 2014
952014
Magnetic entropy change of Pr 1− x Ca x Mn O 3 manganites (0.2⩽ x⩽ 0.95)
MS Reis, VS Amaral, JP Araújo, PB Tavares, AM Gomes, IS Oliveira
Physical Review B 71 (14), 144413, 2005
912005
Rhombohedral-to-orthorhombic transition and multiferroic properties of Dy-substituted BiFeO3
VA Khomchenko, DV Karpinsky, AL Kholkin, NA Sobolev, GN Kakazei, ...
Journal of Applied Physics 108 (7), 074109, 2010
902010
New phase transition in the Pr 1− x Ca x MnO 3 system: evidence for electrical polarization in charge ordered manganites
AML Lopes, JP Araújo, VS Amaral, JG Correia, Y Tomioka, Y Tokura
Physical review letters 100 (15), 155702, 2008
892008
Magnetic interactions and reversal mechanisms in Co nanowire and nanotube arrays
MP Proenca, CT Sousa, J Escrig, J Ventura, M Vazquez, JP Araujo
Journal of Applied Physics 113 (9), 093907, 2013
832013
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