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arXiv · 1305.2717

Magnetic and Electronic Structure study of Fe/MgO/Fe/Co Multilayer Stack Deposited by E-Beam Evaporation

Jitendra Pal Singh·Sanjeev Gautam·Braj Bhusan Singh·M. Raju·S. Chaudhary·D. Kabiraj·D. Kanjilal·Jenn-Min Lee·Jin-Ming Chen·K. Asokan·Keun Hwa Chae
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Abstract

Present work investigates the magnetic and electronic structure of MgO/Fe/MgO/Fe/Co/Au multilayer stack grown on Si(100) substrates by electron beam evaporation method. X-ray diffraction study depicts polycrystalline nature of the multilayers. Results obtained from vibrating sample magnetometry (VSM) and near-edge X-ray absorption fine structure spectra (NEXAFS) at Fe & Co L- and Mg & O K-edges are applied to understand the magnetic and electronic properties of this stack and its interface properties. While the spectral features of Fe L-edge spectrum recorded by surface sensitive total electron yield (TEY) mode shows the formation of FeOx at the Fe/MgO interface, the bulk sensitive total fluorescence yield (TFY), shows Fe in metallic nature. Co L-edge spectrum reveals the presence of metallic nature of cobalt in both TEY and TFY modes. Above results are well correlated with X-ray reflectometry.

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Jitendra Pal Singh, Sanjeev Gautam, Braj Bhusan Singh, M. Raju, S. Chaudhary, D. Kabiraj, D. Kanjilal, Jenn-Min Lee, Jin-Ming Chen, K. Asokan, Keun Hwa Chae. 2013-05-13. Magnetic and Electronic Structure study of Fe/MgO/Fe/Co Multilayer Stack Deposited by E-Beam Evaporation. https://arxiv.org/abs/1305.2717

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