Todas as publicações do grupo de pesquisa podem ser encontradas no Currículo Lattes do coordenador conforme link. Abaixo são elencadas apenas algumas publicações representativas ao longo dos anos e ao lado é possível fazer download de algumas selecionadas.
(18) New route for hollow material
M. Rivaldo-Gómez, F. F. Ferreira, G. T. Landi & J.A. Souza
Scientific Reports 6, 32107 (2016); http://www.nature.com/articles/srep32107
(17) Influence of chemical doping and hydrostatic pressure on the magnetic properties of Mn1−xFexAs magnetocaloric compounds
L. Rocco, A. de Campos, A. Magnus G. Carvalho, A. O. Santos, L. M. da Silva, S. Gama, P. von Ranke, N. A. de Oliveira, A. A. Coelho, L. P. Cardoso, and J. A. Souza
Phys. Rev. B 93, 054431 (2016)
(16) Hierarchically structured nanowires on and nanosticks in ZnO microtube
M. Rivaldo-Gómez, G. A. C. Pasca, A. Zúñiga, A. W. Carbonari, and J. A. Souza.
Scientific Reports 5, 15128 (2015); http://www.nature.com/articles/srep15128
(15) Microtubes decorated with nanowires
Applied Physics Letters 106, 213104 (2015); doi: 10.1063/1.4921795
M. Rivaldo-Gómez, A. Zuniga, D. Criado, J. Schoenmaker, and J. A. Souza
(14) Magnetic and electrical properties assisted by local distortions in multiferroic compounds
The article was published in the Journal of alloys and compounds volume 651 Pages 405–413. see the article at doi:10.1016/j.jallcom.2015.08.165 or a copy of the manuscript here.
(13) Possible misleading interpretations on magnetic and transport properties in BiFeO3nanoparticles caused by impurity phase.
Physics Letters A 379, 1549-1553 (2015); doi: j.physleta.2015.03.035
Fabian E.N. Ramirez, Gabriel A.C. Pasca, Jose Antonio Souza
We have performed a systematic study on the magnetization and electrical polarization of BiFeO3nanoparticles. Two sets of BiFeO3nanoparticlesamples were synthesized by employing a wet chemical method with slightly different route. Our results suggest that the presence of very small amount of magnetic impurity phase, not detected by XRD, can strongly influence the magnetic and electrical properties of this system. The presence of impu-rity affects the leakage current density causing an enhancement in the interfacial polarization. The delocalization character of the charge carriers, influenced by impurities, plays a major role in the electrical polarization. The interfacial polarization contribution makes the remanent polarization and coercive field seem higher. We have discussed how an apparently single phase sample can lead to misleading interpretations of general physical properties such as magnetization, electrical polarization, and magnetic/elec-tric coercive fields which are important parameters in multiferroic systems. We emphasize that in order to study this system and to compare with others, samples must be prepared with extremely care.
(12) Nature of short-range order in the paramagnetic state of manganites
Journal of Alloys and Compounds 571, 21–24 (2013)
Fabian E.N. Ramirez, Elton Francisquini, Jose Antonio Souza
(11) Magnetic, structural, and transport properties at very high temperature in manganites.
Journal of Magnetism and Magnetic Materials 324, 2011–2018 (2012)
Fabian Enrique Nima Ramirez, Fabio Furlan Ferreira, Wendel Andrade Alves, Jose Fernando Queiruga Rey, José Antonio Souza
(10) Scaling behavior of nearly first order magnetic phase transitions
M. G. L. Ferreira and J. A. Souza
Journal of Physics: Condensed Matter v. 23, 226003 (2011)
(9) Analysis of the critical behavior associated with the antiferromagnetic transitions of LaMnO3 and CaMnO3
J. A. Souza, J. J. Neumeier, B. D. White and Yi-Kuo Yu
Physical Review B 81, 172410 (2010)
(8) Magnetic, transport, and thermodynamic properties of CaMn_{2}O_{4} single crystals
D. White, J. A. Souza, C. Chiorescu, J. J. Neumeier, J. L. Cohn
Physical Review B, v. 79, 104427 (2009)
(7) Polaron liquid-gas crossover at the orthorhombic-rhombohedral transition of manganites
J. A. Souza, R. F. Jardim, R. Muccillo, E. Granado, and N. F. Oliveira Jr..
Physical Review B 78, 054411 (2008)
(6) Magnetic signatures of ferromagnetic polarons in La0.7Ca0.3MnO3: Colossal Magnetoresistance is not a Griffiths Singularity
J. A. Souza, J. J. Neumeier, and Yi-KuoYu
Physical Review B 78, 014436 (2008)
(5) Dimensional Crossover in the Purple Bronze Li0.9Mo6O17
A. M. dos Santos, B. D. White, Yi-Kuo Yu, J. J. Neumeier, and J. A. Souza
Physical Review Letters 98, 266405 (2007)
(4) Magnetic susceptibility and electrical resistivity of LaMnO3, CaMnO3 and La1-xSrxMnO3 (0 < x < 1) in the temperature range 300 – 900 K
J. A. Souza, J. J. Neumeier, R. K. Bollinger, B. McGuire, C. A. M. dos Santos, and H. Terashita
Physical Review B 76, 024407 (2007)
(3) Effect of disorder on the thermodynamic phase transition in La0.7Ca0.3MnO3
J. A. Souza, J. J. Neumeier, and R. F. Jardim
Physical Review B 75, 012412 (2007)
(2) Method for Analyzing Second-Order Phase Transitions: Application to the Ferromagnetic Transition of a Polaronic System
J. A. Souza, Yi-Kuo Yu, J. J. Neumeier, H. Terashita, and R. F. Jardim.
Physical Review Letters 94, 207209 (2005)
(1) Magnetoresistivity in the clustered state of La0.7-xYxCa0.3MnO3 manganites
J. A. Souza, and R. F. Jardim
Physical Review B 71, 054404 (2005)