Direct observation of oxygen induced room temperature ferromagnetism in MoO2 thin films by x-ray magnetic circular dichroism characterizations
- Direct observation of oxygen induced room temperature ferromagnetism in MoO2 thin films by x-ray magnetic circular dichroism characterizations
- P. Thakur; J. C. Cezar; N. B. Brookes; R. J. Choudhary; Ram Prakash; D. M. Phase; 채근화; Ravi Kumar
- MnO2; Ferromagnetism at RT; NEXAFS; XMCD
- Issue Date
- Applied physics letters
- VOL 94, 062501-1-062501-3
- We report the element specific polarized near edge x-ray absorption fine structure NEXAFS and x-ray magnetic circular dichroism XMCD experiments on well characterized undoped MoO2 thin films that show ferromagnetism at room temperature. The polarization dependent of O K edge NEXAFS spectra indicate a strong hybridization of O 2p-4d Mo orbitals followed by a strong anisotropy in the electronic properties. An unquenched orbital magnetic moment within the O 2p shell is clearly evident from the XMCD O K edge, which is ferromagnetically coupled to the
neighboring Mo moments as confirmed by Mo M3,2 edge XMCD experiment.
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