210 citations · 1.4k across the 47 of their papers we have counts for
5 papers · 1 filter
Static critical behavior of the ferromagnetic transition in LaMnO3.14 manganite
R. S. Freitas, C. Haetinger, P. Pureur +2
The ferromagnetic phase transition in LaMnO3.14 is investigated by measuring the dc magnetization as a function of magnetic field and temperature. Modified Arrott plot and Kouvel F…
Magnetic relaxation phenomena and cluster glass properties of La{0.7-x}Y{x}Ca{0.3}MnO{3} manganites
R. S. Freitas, L. Ghivelder, F. Damay +2
The dynamic magnetic properties of the distorted perovskite system La{0.7-x}Y{x}Ca{0.3}MnO{3} (0 <= x <= 0.15) have been investigated by ac-susceptibility and dc magnetization meas…
Magnetoresistance induced by low-field control of phase separation in La0.5Ca0.5MnO3
F. Parisi, P. Levy, L. Ghivelder +2
The effect of low magnetic fields on the transport properties of a manganite compound with magnetic phase separation is studied. The different behavior obtained in samples of La0.5…
Low-temperature specific heat of La0.78Pb0.22MnO3-d manganite
L. Ghivelder, R. S. Freitas, R. E. Rapp +3
The specific heat of the perovskite manganite La0.78Pb0.22MnO3-d was measured from 0.5 to 25 K. The results yield values of the electronic density of states, the Debye temperature,…
Controlled Phase Separation in La_0.5 Ca_0.5 Mn O_3
P. Levy, F. Parisi, G. Polla +5
A systematic study of phase separation effects in polycrystalline La_0.5 Ca_0.5 Mn O_3 obtained under different thermal treatments is reported. Samples with average grain size rang…