Journal
PHYSICAL REVIEW B
Volume 76, Issue 18, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.76.184441
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Ca1-xSrxRuO3, which is ferromagnetic for Sr concentration x>0.3, has been studied by x-ray magnetic circular dichroism (XMCD) in Ru 3p and O 1s core-level x-ray absorption. XMCD signals appear at x similar to 0.3 and monotonically increase with x in the ferromagnetic phase. While the monotonic increase of the XMCD signals with x is of a typical Stoner-type, the absence of appreciable change in the spectral line shapes of both the Ru 3p and O 1s XMCD spectra indicate that the itinerant-electron ferromagnetism in Ca1-xSrxRuO3 is influenced by strong electron correlation.
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