8 papers
Low temperature irreversibility induced by thermal cycles on two prototypical phase separated manganites
J. Sacanell, M. Quintero, J. Curiale +8
We have studied the effect of irreversibility induced by repeated thermal cycles on the electric transport and magnetization of polycrystalline samples of La0.5Ca0.5MnO3 and La0.32…
Persistent magnetoresistive memory in phase separated manganites
P. Levy, F. Parisi, J. Sacanell +10
We have studied magnetic and transport properties on different manganese oxide based compounds exhibiting phase separation: polycrystalline La5/8-yPryCa3/8MnO3 (y=0.3) and La1/2Ca1…
Non-volatile magnetoresistive memory in phase separated LaPrCaMnO
P. Levy, F. Parisi, M. Quintero +7
We have measured magnetic and transport response on the polycrystalline LaPrCaMnO (, average grain size 2 microns) compound. In the temperature ra…
Magnetization studies of phase separation in LaCaMnO
R. S. Freitas, L. Ghivelder, P. Levy +1
We present magnetization studies in a series of phase separated LaCaMnO samples, with different low temperature fractions of the ferromagnetic (FM) and charg…
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…