80 citations · 132 across the 5 of their papers we have counts for
5 papers
Structural, morphological, and magnetic characterizations of (Fe0.25Mn0.75)2O3 nanocrystals: a comprehensive stoichiometric determination
John C. Mantilla, Luiz C. C. M. Nagamine, Daniel R. Cornejo +8
Iron manganese trioxide (Fe0.25Mn0.75)2O3 nanocrystals were synthesized by the sol-gel method. The 80 K Mossbauer spectrum was well-fitted using two doublets representing the 8b an…
Magnetic correlations in subsystems of the misfit [CaCoO][CoO] cobaltate
Abdul Ahad, K. Gautam, K. Dey +7
[CaCoO][CoO], a two dimensional misfit metallic compound, is famous for its rich phases accessed by temperature, high temperature spin-state transition,…
Magnetic interaction and anisotropy axes arrangement in nanoparticle aggregates can enhance or reduce the effective magnetic anisotropy
V. R. R. Aquino, L. C. Figueiredo, J. A. H. Coaquira +2
The magnetic response of nanostructures plays an important role on biomedical applications being strongly influenced by the magnetic anisotropy. In this work we investigate the rol…
Structural and magnetic properties of core-shell Au/Fe3O4 nanoparticles
L. León Fénix J. A. H. Coaquira, M. A. R. Martínez, G. F. Goya +5
We present a systematic study of core-shell Au/Fe_3O_4 nanoparticles produced by thermal decomposition under mild conditions. The morphology and crystal structure of the nanopartic…
Magnetic phases evolution in the LaMn1-xFexO3+y system
O. F. de Lima, J. A. H. Coaquira, R. L. de Almeida +2
We have investigated the crystal structure and magnetic properties for polycrystalline samples of LaMn1-xFexO3+y, in the whole range x=0.0 to x=1.0, prepared by solid state reactio…