40 citations · 57 across the 4 of their papers we have counts for
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On the vibrational properties of transition metal doped ZnO: surface, defect, and bandgap engineering
Viviane M. A. Lage, Carlos Rodríguez-Fernández, Felipe S. Vieira +5
We present a comprehensive study on the structure and optical properties of Mn-and Co-doped ZnO samples prepared via solid-state reaction method with different dopant concentration…
Magnetization of Zn1-xCoxO nanoparticles: single-ion anisotropy and spin clustering
X. Gratens, B. de Abreu Silva, M. I. B. Bernardi +3
The magnetization of Zn1-xCoxO (0.0055 < x < 0.073) nanoparticles has been measured as a function of temperature T (1.7 K < T , 10 K) and for magnetic field up to 65 kOe using a SQ…
Effects of Reducing Heat Treatment on the Structural and the Magnetic Properties of Mn:ZnO Ceramics
V. M. Almeida Lage, R. T. da Silva, A. Mesquita +4
Polycrystalline bulk Mn:ZnO ceramics with Mn nominal concentrations of 6, 11, 17 and 22 at.% were prepared trough solid-state reaction method and subjected to a heat treatment in r…
Defect Induced Room Temperature Ferromagnetism in High Quality Co-doped ZnO Bulk Samples
M. P. F. de Godoy, X. Gratens, V. A. Chitta +6
The nature of the often reported room temperature ferromagnetism in transition metal doped oxides is still a matter of huge debate. Herein we report on room temperature ferromagnet…