origin of FM correlations in Ca2Mn2-xRuxO7 (0.1<x<0.9) and investigation of K...

We observed unexpected features of Ca2Mn2-xRuxO7 at Ru L3 with HERFD-XAS, whose origin cannot be purely electronic. EXAFS (and XANES) at the Mn and Ru K edges would definitely...我们借助高能量分辨率荧光检测X射线吸收谱（High Energy Resolution Fluorescence Detected X-ray Absorption Spectroscopy, HERFD-XAS），在Ca₂Mn₂₋ₓRuₓO₇的Ru L3吸收边处观测到非预期的谱学特征，且该特征的起源无法仅用电子效应单独解释。针对Mn与Ru的K吸收边开展的扩展X射线吸收精细结构（Extended X-ray Absorption Fine Structure, EXAFS）与X射线吸收近边结构（X-ray Absorption Near Edge Structure, XANES）测量无疑将……