Singh, Jitendra Pal Ji, Mi-Jung Kumar, Manish Lee, Ik-Jae Chae, Keun Hwa 2024-01-19T22:32:19Z 2024-01-19T22:32:19Z 2021-09-03 2018-06-05 0925-8388 https://pubs.kist.re.kr/handle/201004/121263 Present work investigates the nature of adsorbed species onto the surface of MgO thin films during prolonged annealing. The prolonged annealing (300 degrees C, 24 h) was performed on MgO thin films of different thicknesses ranging from 6.5 to 56.2 nm in order to exactly identify the related effect. Deposited films of different thicknesses exhibited local electronic structure very much analogues to the bulk MgO as investigated through near edge X-ray absorption fine structure measurements. These measurements further revealed that local electronic structure was significantly modified by prolonged annealing. It was contemplated that oxygen molecules were adsorbed on the surface of MgO thin films during prolonged annealing. Apart from this, onset of H2O adsorption was also identified using Fourier transform infrared spectroscopy. (C) 2018 Elsevier B.V. All rights reserved. English ELSEVIER SCIENCE SA X-RAY-ABSORPTION MOLECULAR-OXYGEN MAGNETIC-PROPERTIES CRYSTALLIZATION DYNAMICS XANES DISSOCIATION INTERFACE COMPLEXES DIFFUSION Unveiling the nature of adsorbed species onto the surface of MgO thin films during prolonged annealing Article 10.1016/j.jallcom.2018.02.344 1 JOURNAL OF ALLOYS AND COMPOUNDS, v.748, pp.355 - 362 JOURNAL OF ALLOYS AND COMPOUNDS 748 355 362 scie scopus 000429838900046 2-s2.0-85044106915 Chemistry, Physical Materials Science, Multidisciplinary Metallurgy & Metallurgical Engineering Chemistry Materials Science Metallurgy & Metallurgical Engineering Article X-RAY-ABSORPTION MOLECULAR-OXYGEN MAGNETIC-PROPERTIES CRYSTALLIZATION DYNAMICS XANES DISSOCIATION INTERFACE COMPLEXES DIFFUSION MgO Adsorption NEXAFS FTIR