10 citations · 43 across the 13 of their papers we have counts for
5 papers
Fabrication and physical properties of stable room temperature bulk ferromagnetic graphite
H. Pardo, R. Faccio, A. W. Mombru +2
The search for macroscopic magnetic ordering phenomena in organic materials, in particular in pure graphite, has been one of the more exciting scientific activities working in the…
Stable room temperature magnetic graphite
H. Pardo, F. M. Araujo-Moreira, R. Faccio +6
Carbon materials are attracting increasing attention due to the novelty of the associated physical properties and the potential applications in high-tech devices. The possibility t…
Comparative study of specific heat measurements in LaMnO3, La1.35Sr1.65Mn2O7, La1.5Sr0.5NiO4 and La1.5Sr0.5CoO4
J. Lopez, O. F. de Lima, C. A. Cardoso +2
We present the temperature dependence of the specific heat, without external magnetic field and with H= 9 T, for LaMnO3, La1.35Sr1.65Mn2O7, La1.5Sr0.5NiO4 and La1.5Sr0.5CoO4 single…
Spin Glass Behavior in the Ru-1222 and Ru-1212 rutheno-cuprate families: a comparative study
C. A. Cardoso, F. M. Araujo-Moreira, V. P. S. Awana +3
Strong evidences of a spin glass phase on polycrystalline RuSr2Ln1.5Ce0.5Cu2O10-x (LnRu-1222, Ln = Y, Ho and Dy) is provided by ac susceptibility and dc magnetization measurements.…
Superconductivity in sintered-polycristalline PrBaCuO
F. M. Araujo-Moreira, P. N. Lisboa Filho, S. M. Zanetti +2
Superconductivity in thin films and powders, and in single crystals of Pr-123 has been found by Blackstead et al. and Zou et al., respectively. Nevertheless, up to now it has never…