Soft x-ray magnetic circular dichroism of LaCoO${}_3$, La${}_{0.7}$Ce${}_{0.3}$CoO${}_3$, and La${}_{0.7}$Sr${}_{0.3}$CoO${}_3$ films: Evidence for Co valency-dependent magnetism and magnetic anisotropy

M. Merz, P. Nagel, C. Pinta +7

Epitaxial thin films of undoped LaCoO${}_3$\@, of electron-doped La${}_{0.7}$Ce${}_{0.3}$CoO${}_3$\@, and of hole-doped La${}_{0.7}$Sr${}_{0.3}$CoO${}_3$\@ exhibit ferromagnetic order with…