INVESTIGADORES
SANCHEZ Rodolfo Daniel
artículos
Título:
Approximation to the metal-insulator transition by Gd3+ doping in Pauli LaNiO3 perovskite
Autor/es:
SANCHEZ, R.D.; RIVAS, J.; GARCIA-SANZ, F.; CAUSA, M.T.
Revista:
JOURNAL OF ALLOYS AND COMPOUNDS
Editorial:
ELSEVIER SCIENCE SA
Referencias:
Año: 1996 vol. 239 p. 31 - 33
ISSN:
0925-8388
Resumen:
The effect on electrical and magnetic properties of Gd3+ doping of LaNiO3 was studied for Gd concentration x ≤ 0.1. The electrical resistivity ρ increases with x, being dρ/dT > 0 for all samples studied. The magnetic susceptibilities were fitted by the function χ(T) = χ0 - aT2 + xCGd(3+)/T. The EPR results are discussed in terms of the Gd3+ paramagnetic moment interactions with the crystal field and with the conduction electron spins.
