Gautam, Sanjeev Asokan, Kandasami Singh, Jitendra Pal Chang, Fan-Hsiu Lin, Hong-Ji Chae, Keun Hwa 2024-01-20T09:35:06Z 2024-01-20T09:35:06Z 2021-09-05 2014-05-07 0021-8979 https://pubs.kist.re.kr/handle/201004/126796 The interface properties of Fe/MgO/Fe multilayer stack were investigated by using X-ray absorption spectroscopy (XAS) and X-ray magnetic circular dichroism (XMCD). The magnetic multilayers were deposited by electron beam evaporation method, which exhibits the attributes of perpendicular magnetic anisotropy (PMA). XAS analysis shows that Fe-layer forms a Fe-O-rich interface region with MgO-layer and a sum-rule analysis of the XMCD estimates the average magnetic moment of 2.31 +/- 0.1 mu(B) per Fe-atom. XAS and XMCD studies indicate the formation of a heterostructure (Fe/FeO/Fe2O3) on the interface. A phase transition in Fe-O stoichiometry at interface is also observed at low temperature (90 K), which may be useful in magnetic storage technology. (C) 2014 AIP Publishing English AMER INST PHYSICS TRANSITION-METAL COMPOUNDS 2P ABSORPTION-SPECTRA ROOM-TEMPERATURE LAYERS SPECTROSCOPY JUNCTIONS FERRITE SI(111) COBALT FILMS Electronic structure of Fe/MgO/Fe multilayer stack by X-ray magnetic circular dichroism Article 10.1063/1.4862380 1 JOURNAL OF APPLIED PHYSICS, v.115, no.17 JOURNAL OF APPLIED PHYSICS 115 17 scie scopus 000335643700300 2-s2.0-84899628694 Physics, Applied Physics Article; Proceedings Paper TRANSITION-METAL COMPOUNDS 2P ABSORPTION-SPECTRA ROOM-TEMPERATURE LAYERS SPECTROSCOPY JUNCTIONS FERRITE SI(111) COBALT FILMS electronic structure XMCD Fe/MgO/Fe multilayer