132 citations · 385 across the 17 of their papers we have counts for
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Temperature oscillations of magnetization observed in nanofluid ferromagnetic graphite
S. Sergeenkov, N. S. Souza, C. Speglich +5
We report on unusual magnetic properties observed in the nanofluid room-temperature ferromagnetic graphite (with an average particle size of l=10nm). More precisely, the measured m…
Manifestation of finite temperature size effects in nanogranular magnetic graphite
S. Sergeenkov, N. S. Souza, C. Speglich +5
In addition to the double phase transition (with the Curie temperatures T_C=300K and T_{Ct}=144K), a low-temperature anomaly in the dependence of the magnetization is observed in t…
Synthesis, characterization and magnetic properties of room-temperature nanofluid ferromagnetic graphite
N. S. Souza, S. Sergeenkov, C. Speglich +7
We report the chemical synthesis route, structural characterization, and physical properties of nanofluid magnetic graphite (NFMG) obtained from the previously synthesized bulk org…
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…
Physical properties of single-crystalline fibers of the colossal-magnetoresistance manganite La0.7Ca0.3MnO3
C. A. Cardoso, F. M. Araujo-Moreira, M. R. B. Andreeta +5
We have grown high-quality single crystals of the colossal-magnetoresistance (CMR) material La0.7Ca0.3MnO3 by using the laser heated pedestal growth (LHPG) method. Samples were gro…