Title: Investigating Orbital Magnetic Moments in Spinel-Type MnV<sub>2</sub>O<sub>4</sub> Using X-ray Magnetic Circular Dichroism
Abstract: Element-specific magnetic structures, particularly orbital magnetic moments, of spinel-type MnV2O4 were investigated using X-ray magnetic circular dichroism (XMCD). X-ray absorption and XMCD spectra clearly reveal that the Mn2+ (d5) and V3+ (d2) states are coupled antiferromagnetically. Analyses of XMCD spectra using magneto optical sum rules revealed that small but finite orbital magnetic moments remain in both V and Mn 3d states, which accounts for the antiferro-type orbital ordering in the V sites of MnV2O4 with coexisting complex and real orbital states. Additionally, the Cr doping effect in MnV2O4 was examined. The XMCD spectra of Cr 3+ (d3) L-edges exhibited the substitution of Cr ions to the V sites ferromagnetically, with low conductivity through the suppression of the orbital ordering.
Publication Year: 2015
Publication Date: 2015-09-07
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 15
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