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2006 - Physics Degree, Universidade de Aveiro
2007 - MSc Physics Engineering, Universidade de Aveiro
2011 - PhD, Universidade de Aveiro
2012 to 2018 - Post-doctoral researcher
2019 to present - Researcher
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"Volume dependence of magnetic properties in Co2Cr1−xYxGa (Y=Ti-Ni) Heusler alloys: A first-principles study", J. N. Gonçalves, N. M. Fortunato, J. S. Amaral, V. S. Amaral, Journal of Magnetism and Magnetic Materials 428 362 (2017). DOI: 10.1016%2Fj.jmmm.2016.12.102
"Magnetovolume Effects in Heusler Compounds via First-Principles Calculations", J. N. Gonçalves, J. S. Amaral, V. S. Amaral, IEEE Transactions on Magnetics 50 1301104 (2014). DOI: 10.1109/TMAG.2014.2326892
"Hyperfine local probe study of alkaline-earth manganites SrMnO3 and BaMnO3", J. N. Gonçalves, V. S. Amaral, J. G. Correia, A. M. L. Lopes, J. P. Araújo, P. B. Tavares, Journal of Physics: Condens. Matter 26 215401 (2014). DOI: 10.1088/0953-8984/26/21/215401
"Ab initio study of the relation between electric polarization and electric field gradients in ferroelectrics", J. N. Gonçalves, A. Stroppa, J. G. Correia, T. Butz, S. Picozzi, A. S. Fenta, V. S. Amaral, Physical Review B 86 035145 (2012). DOI: 10.1103/PhysRevB.86.035145
"Hyperfine interactions in MnAs studied by perturbed angular correlations of γ-rays using the probe Br77→ Se77 and first-principles calculations for MnAs and other Mn pnictides", J. N. Gonçalves, V. S. Amaral, J. G. Correia, A. M. L. Lopes, Physical Review B 83, 104421 (2011). DOI: 10.1103/PhysRevB.83.104421
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Magnetic materials, ferroelectrics, multiferroics, graphene, transition metal oxides, other functional materials. First-principles, density functional theory calculations. Hyperfine interactions: electric field gradients, hyperfine fields, and their relation to other properties. Perturbed angular correlation spectroscopy and complementary calculations.
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Ultra sensitive quantification of Hg2+ sorption by functionalized nanoparticles using radioactive tracker spectroscopyAmorim, CO; Goncalves, JN; Tavares, DS; Fenta, AS; Lopes, CB; Pereira, E; Trindade, T; Correia, JG; Amaral, VS
2018, MICROCHEMICAL JOURNAL, 138, 418-423.
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Experimental realisation of off-stoichiometric Fe-Mn-Si full Heusler alloy with hexagonal crystal structure by pulsed laser depositionChecca, NR; Caraballo-Vivas, RJ; Coelho, AA; Rossi, A; Fortunato, NM; Mohseni, F; Goncalves, JN; Amaral, JS; Rocco, DL; Reis, MS
2018, MATERIALS & DESIGN, 143, 268-273.
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Volume dependence of magnetic properties in Co2Cr1-xYxGa (Y= Ti-Ni) Heusler alloys: A first-principles studyGoncalves, JN; Fortunato, NM; Amaral, JS; Amaral, VS
2017, JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 428, 362-367.
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Novel multiferroic state and ME enhancement by breaking the AFM frustration in LuMn1-xO3Figueiras, FG; Karpinsky, D; Tavares, PB; Goncalves, JN; Yanez-Vilar, S; Dos Santos, AFM; Franz, A; Tovar, M; Moreira, JA; Amaral, VS
2017, PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 19, 2, 1335-1341.
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Cd and In-doping in thin film SnO2Schell, J; Lupascu, DC; Carbonari, AW; Mansano, RD; Freitas, RS; Goncalves, JN; Dang, TT; Vianden, R
2017, JOURNAL OF APPLIED PHYSICS, 121, 19,
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On the nature of the (de)coupling of the magnetostructural transition in Er5Si4Costa, RM; Belo, JH; Barbosa, MB; Algarabel, PA; Magen, C; Morellon, L; Ibarra, MR; Goncalves, JN; Fortunato, NM; Amaral, JS; Araujo, JP; Pereira, AM
2017, PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS, 254, 10,
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Assessing Segregation Effects on Multiferroic Properties of Antiferromagnetic - Weak Ferromagnetic Coupled Sy stems by Analytical HRTEM M. Vieira, A. Baghizadeh, J. S. Amaral, J. N. Gonalves, B. A. Almeida, M-G. Willinger, V. S. Amaral
2016, Microscopy and Microanalysis, 22, S4, 58-59.
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Nanodomains Coupled to Ferroelectric Domains Induced by Lattice Distortion in Self-Doped LuMnxO3 +/-delta Hexagonal CeramicsBaghizadeh, A; Vieira, JM; Goncalves, JN; Willinger, MG; Ferro, MC; Amaral, VS
2016, JOURNAL OF PHYSICAL CHEMISTRY C, 120, 38, 21897-21904.
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Giant magnetocaloric effect of compressible Ising and Heisenberg latticesJ. S. Amaral, N. M. Fortunato, C. O. Amorim, J. N. Gonçalves, V. S. Amaral
2016, Refrigeration Science and Technology Proceedings, 252
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Hyperfine local probe study of alkaline-earth manganites SrMnO3 and BaMnO3Goncalves, JN; Amaral, VS; Correia, JG; Lopes, AML; Araujo, JP; Tavares, PB
2014, JOURNAL OF PHYSICS-CONDENSED MATTER, 26, 21,
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Thermodynamics of the 2-D Ising Model From a Random Path Sampling MethodAmaral, JS; Goncalves, JN; Amaral, VS
2014, IEEE TRANSACTIONS ON MAGNETICS, 50, 11,
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Local probing of multiferroics: First-principles study of hyperfine parameters in YMnO3 and YMn2O5Goncalves, JN; Amaral, VS; Correia, JG; Stroppa, A; Fenta, AS; Baghizadeh, A; Picozzi, S
2014, JEMS 2013 - JOINT EUROPEAN MAGNETIC SYMPOSIA, 75,
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Magnetovolume Effects in Heusler Compounds via First-Principles CalculationsGoncalves, JN; Amaral, JS; Amaral, VS
2014, IEEE TRANSACTIONS ON MAGNETICS, 50, 11,
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Doping of Ga2O3 bulk crystals and NWs by ion implantationLorenz, K; Peres, M; Felizardo, M; Correia, JG; Alves, LC; Alves, E; Lopez, I; Nogales, E; Mendez, B; Piqueras, J; Barbosa, MB; Araujo, JP; Goncalves, JN; Rodrigues, J; Rino, L; Monteiro, T; Villora, EG; Shimamura, K
2014, OXIDE-BASED MATERIALS AND DEVICES V, 8987,
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Strain induced enhanced ferromagnetic behavior in inhomogeneous low doped La0.95Sr0.05MnO3+deltaDas, S; Amaral, JS; De, K; Willinger, M; Goncalves, JN; Roy, A; Dhak, P; Giri, S; Majumder, S; Silva, CJR; Gomes, MJM; Mahapatra, PK; Amaral, VS
2013, APPLIED PHYSICS LETTERS, 102, 11,
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