RT Journal Article
T1 Temperature dependence of the magnetic properties in LaMnO_(3+δ)
A1 Romero, J.J.
A1 Cuadrado, R.
A1 Arroyo, A.
A1 García, M. A.
A1 Hernando Grande, Antonio
A1 Cortés Gil, R
A1 González Calbet, J. M.
A1 Vallet Regí, V.
AB Data are presented on the thermal dependence of the hysteretic properties of cationic vacancies including manganite samples of composition LaMnO_(3+δ)(δ=0.05 and 0.12). Our results evidence the presence in both samples of two magnetic phases having ferro- and antiferromagnetic orders, respectively. The temperature dependence of the coercivity and relaxational properties of the samples is closely linked to the connectivity of the magnetic moment bearing Mn^(3+)-Mn^(4+) ferromagnetic clusters that demagnetize independently in the case of the δ=0.05 sample and collectively in that of the δ=0.12 one, as evidenced from the activation volume results (delta=0.05) which yielded a size of the same order magnitude as that obtained in previous works for the Mn^(3+)-Mn^(4+) ferromagnetic cluster size.
PB American Institute of Physics
SN 0021-8979
YR 2006
FD 2006-04-15
LK https://hdl.handle.net/20.500.14352/52092
UL https://hdl.handle.net/20.500.14352/52092
LA eng
NO © 2006 American Institute of Physics.One of the authors J.J.R. acknowledges Ministerio de Educación y Ciencia of Spain for his “Juan de la Cierva” contract.
DS Docta Complutense
RD 29 abr 2024