Abstract
It’s indeed critical to improve our understanding of how functional materials work in order to design the next generation of materials in their domains. We chose LuFeO3 and Lu(YFe)O3 to study the electronic structural and spectroscopic properties using X-ray photoelectron spectroscopy and Mössbauer spectra to accomplish this. LuFeO3 and Lu0.2Y0.8FeO3 were prepared by the solution combustion method using carbamide and glucose as fuel. As-synthesized samples sintered at 1250 °C to get single phase. X-ray diffraction patterns of LuFeO3 nanoparticles confirm the orthorhombic structure and Lu0.2Y0.8FeO3 nanoparticles confirm the major orthorhombic structure and minor hexagonal structure. Crystallite size decreases after the substitution of Y3+ on LuFeO3. X-ray photoelectron spectra were excited with a monochromatized AlK _-line radiation. Absolute resolved energy interval was 0.6 eV, which was determined with the Ag3d5/2 line. The diameter of the X-ray spot on a sample was 500 mm; it was small enough to study the samples obtained. The sample of the composition Lu0.2Y0.8Fe O3 contains approximately 10 times less LuFeO3. The spectra are split into components that correspond to the valence locations of Y3d, Fe3d, and Lu 4f states in yttrium, iron, and lutetium, respectively. It can be seen that the addition of yttrium does not strongly displace the valence band components related to the densities of Y3d, Fe3d, and Lu 4f states in the Lu0.2Y0.8FeO3 sample as compared to nanoparticles of the LuFeO3 composition. Fe2p3/2,1/2—X-ray photoelectron spectra in both samples have similar energies. In addition, both spectra have charge transfer satellites located at about 718.2 eV between the Fe2p3/2 and Fe2p1/2 peaks. Mössbauer spectra of LuFeO3 and Lu0.2Y0.8FeO3 were collected in the temperature range of 13–700 K. At 700 K, the spectra of both samples are paramagnetic doublets with similar parameters. At the lowest temperature (14 K), the spectra of both samples are magnetically split sextets. The isomer shift values of the sextets and doublets are typical for Fe3+ ions in oxygen octahedron.
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The datasets generated during and/or analyzed during the current study are available from the corresponding author on reasonable request. The data that support the findings of this study are not openly available due to unpublished this work anywhere and are available from the corresponding author upon reasonable request.
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Acknowledgements
Taif University Researchers Supporting Project Number (TURSP-2020/45) Taif University, Taif, Saudi Arabia. Kozakov A.T., Nikolsky A.V. are grateful to the Southern Federal University for financial support (Internal grant of SFU for the implementation of scientific research, project No. VnGr-07/2020-01-IF). This work was supported by the Ministry of Science and Higher Education of the Russian Federation [State task in the field of scientific activity, scientific project No. 0852-2020-0032 (BAS0110/20-3-08IF)].
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KSK contributed to conceptualization, methodology, software, and writing. GVJG contributed to analysis. AED contributed to data curation, writing- original draft preparation, and analysis. NR contributed to reviewing. JAV contributed to reviewing and editing. KAT and NAV contributed to X-ray photoelectron spectroscopy analysis. SK contributed to Mossbauer spectroscopy. AG contributed to Software. BMR and MD contributed to editing.
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Hereby, I DR. Jagadeesha Angadi V consciously assure that for the manuscript Study of the electronic structure of LuFeO3 and Lu(YFe)O3 nanoparticles by X-ray photoelectron spectroscopy and Mossbaure Spectra, the following is fulfilled: (1) This material is the authors’ own original work, which has not been previously published elsewhere. (2) The paper is not currently being considered for publication elsewhere. (3) The paper reflects the authors’ own research and analysis in a truthful and complete manner. (4) The paper properly credits the meaningful contributions of co-authors and co-researchers. (5) The results are appropriately placed in the context of prior and existing research. (6) All sources used are properly disclosed (correct citation). Literally copying of text must be indicated as such by using quotation marks and giving proper reference. (7) All authors have been personally and actively involved in substantial work leading to the paper and will take public responsibility for its content. The violation of the Ethical Statement rules may result in severe consequences. To verify originality, your article may be checked by the originality detection software iThenticate. See also http://www.elsevier.com/editors/plagdetect. I agree with the above statements and declare that this submission follows the policies of Journal of material science materials in electronics as outlined in the Guide for Authors and in the Ethical Statement.
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Kantharaj, K.S., Gowda, G.V.J., El-Denglawey, A. et al. Study of the electronic structure of LuFeO3 and Lu(YFe)O3 nanoparticles by X-ray photoelectron spectroscopy and Mossbauer spectra. J Mater Sci: Mater Electron 33, 14178–14187 (2022). https://doi.org/10.1007/s10854-022-08347-x
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DOI: https://doi.org/10.1007/s10854-022-08347-x