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Inicio » Actividades I+D > Publicaciones 2006 > Magnetic study of La0.75Sr0.25MnO3 / LaN...
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"Magnetic study of La0.75Sr0.25MnO3 / LaNiO3 multilayers"
M. Granada, J.C. Rojas Sánchez, L.B. Steren and A.G. Leyva
Proc. of the "7th Latin American Workshop on Magnetism, Magnetic Materials and their Applications" (LAW3M-05), Reñaca, Chile, December 12-16, 2005. Ed. J. Rössler, M. Molina and E. Vogel
Physica B Condens. Matter. 384(1-2) (2006) 68-70
We present an investigation of the magnetic properties of metallic La0.75Sr0.25MnO3/LaNiO3 multilayers. We have deduced that the free energy of the structures is mainly driven by the magnetic anisotropies of the La0.75Sr0.25MnO3 layers. We have proved the existence of a magnetocrystalline cubic anisotropy, whose easy axes are oriented in the <1 1 0> directions and a substrate-induced in-plane uniaxial anisotropy that favours a (0 1 0) orientation of the magnetization. We have also shown that the magnetic layers are ferromagnetically coupled for LaNiO3 spacers thinner than 2 nm. For thicker spacers, the coupling strength oscillates with increasing LaNiO3 thickness.
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