Saraswat, Himani Chaudhary, Surekha Varshney, Mayora Devi, Devarani Singh, Fouran Won, S. O. Shin, Hyun-Joon Sharma, Aditya 2024-01-19T16:04:42Z 2024-01-19T16:04:42Z 2021-09-02 2020-11 0042-207X https://pubs.kist.re.kr/handle/201004/117907 Investigations on the extrinsic defects induced alteration in B-O6 octahedra, energy band-structure amendments and physical assets of ABO(3) perovskites are technologically important and require modest approaches for the defect creation and their investigations. In this study, Cu defects have been assimilated in SrVO3 films using 150 KeV Cu ion-implantation with two different ion fluences; 1.63 x 10(15) ion/cm(2) and 8.15 x 10(15) ion/cm(2). The implanted Cu ions do not make metallic/oxide clusters in SrVO3 films, as confirmed by XRD studies, but have facilitated the lattice parameter enlargement and energy band-gap narrowing by creating their defect states and V-O6 octahedra distortion. NEXAFS spectra at Cu L-edge have confirmed the Cu2+ ions in low/high Cu doses implanted SrVO3 films. Cu defects induced V-O6 octahedra distortion has manifested a diverse ligand field interaction between V 3 d and O 2p orbitals and has narrowed the; (i) energy gap of V 2p(3/2) and V 2p(1/2) transitions and (ii) energy gap between t(2g)/e(g) and the O 2p and metal (n+1)sp hybridized orbitals, leading to the band-structure alteration of SrVO3 films. Mechanistic understanding of band-structure perturbation is discussed in the light of ion-solid interaction induced defect formation in SrVO3 thin films. English PERGAMON-ELSEVIER SCIENCE LTD RAY-ABSORPTION SPECTROSCOPY OPTICAL-PROPERTIES MECHANISTIC INSIGHTS TIO2 NANOPARTICLES GRAIN-GROWTH CERAMICS SRTIO3 XANES PURE SIZE 150 KeV Cu- ion- implantation in SrVO3 thin films: A study of Cu induced defect states Article 10.1016/j.vacuum.2020.109655 1 VACUUM, v.181 VACUUM 181 scie scopus 000580600700036 2-s2.0-85089385692 Materials Science, Multidisciplinary Physics, Applied Materials Science Physics Article RAY-ABSORPTION SPECTROSCOPY OPTICAL-PROPERTIES MECHANISTIC INSIGHTS TIO2 NANOPARTICLES GRAIN-GROWTH CERAMICS SRTIO3 XANES PURE SIZE SrVO3 Thin films Ion-implantation Defects