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, José María
A1 Vallet Regí, María Dulce Nombre
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 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 28 sept 2024