Singh, Jitendra Pal Lim, Weon Cheol Gautam, Sanjeev Asokan, Kandasami Chae, Keun Hwa 2024-01-20T04:00:38Z 2024-01-20T04:00:38Z 2021-09-04 2016-07-05 0264-1275 https://pubs.kist.re.kr/handle/201004/123879 Swift heavy ion irradiation induced effects on magnetic multilayer were investigated on Fe/MgO/Fe/Co multilayer stack grown on Si substrate using e-beam evaporation. This stack was irradiated perpendicularly by 120 MeV Ag15+ with different fluences ranging from 1 x 10(11) to 1 x 10(13) ions/cm(2). X-ray diffraction and transmission electron microscopy infer atomic transportation during irradiation. Magnetic measurements carried out on pristine and irradiated stacks show significant changes in the shape of perpendicular magnetic hysteresis, which envisages the re-orientation of magnetic moment along the direction of ion path. X-ray absorption spectroscopic measurements show the onset of changes in the Fe valence state and O (2p)-metal (3d) hybridization after ion irradiation. The change of valence state predicts the oxide formation at interface, which causes the enhancement of in-plane squareness. (C) 2016 Elsevier Ltd. All rights reserved. English Elsevier BV FILMS BOMBARDMENT FERRITE MEMORY Swift heavy ion irradiation induced effects in Fe/MgO/Fe/Co multilayer Article 10.1016/j.matdes.2016.03.135 1 Materials & Design, v.101, pp.72 - 79 Materials & Design 101 72 79 scie scopus 000375413100009 2-s2.0-84962635653 Materials Science, Multidisciplinary Materials Science Article FILMS BOMBARDMENT FERRITE MEMORY Irradiation Multilayer Valence state In-plane squareness