Band filling versus bond bending in substituted LxSr2−xFeMoO6(L=Ca, La, Nd) compounds
作者： D Rubi , C Frontera , G Herranz , JL Garcıa Muñoz , J Fontcuberta
DOI: 10.1063/1.1667443
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摘要: With the aim of determining and discriminating influence both steric band-filling effects on strength magnetic interactions double perovskites, we have studied structural properties substituted LxSr2−xFeMoO6 (L=Ca, La, Nd) compounds. Our results show that raising Curie temperature in electron-doped samples (La Nd substitutions) is mainly due to effects, being distortions (steric effects) less relevance. This fact contrasts with well-known manganites, where a strong correlation between present. We argue this disagreement relies different symmetries electronic orbitals involved cases.
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