Effect of Electron Irradiation on Electronic Structure of Ni 41 Co 6 Mn 43 Sn 10 Alloys
Electronic Materials Letters(2024)
Abstract
Effect of electron irradiation on electronic structure of Ni 41 Co 6 Mn 43 Sn 10 alloys were investigated by X-ray absorption fine structure, X-ray magnetic circular dichroism spectrometry and Mössbauer spectrometry. The local coordination environment of magnetic element significant changes after electron irradiation, the change in the peak intensity of the Co L 3 edge is opposite to the Ni/Mn element, indicating that there is an electronic exchange between them. The crystal field symmetry is broken, the hyperfine field H in of the Ni 41 Co 6 Mn 43 Sn 10 alloy increases from 8.80 to 9.06 T. Meanwhile, the spin magnetic moment of the Mn atom is significantly increased after electron irradiation. Graphical Abstract MCD, XAS spectra of Ni and Mn and Hyperfine field distribution of Ni 41 Co 6 Mn 43 Sn 10 alloys before and after electron irradiation
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Key words
Ni-Co-Mn-Sn heusler alloys,Electron irradiation,Mössbauer spectrometry,Electronic local structure
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