Systematic X-ray photoelectron spectroscopy and theoretical studies of disulfides of groups IVB,VB and VIB transition metals |
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| Institution: | 1. Department of Physics, University of Antwerp, Groenenborgerlaan 171, B-2020 Antwerp, Belgium;2. Department of Radiation Application, Shahid Beheshti University, G. C., Tehran, Iran;3. Department of Physics, Faculty of Science, University of Kurdistan, 66177-15175 Sanandaj, Iran;4. Department of Photonics, Izmir Institute of Technology, 35430 Izmir, Turkey;5. Department of Physics, University of Oslo, P.O. Box 1048, Blindern, Oslo, Norway;6. College of Electronic and Electrical Engineering, Sungkyun Kwan University, Suwon, Korea;7. Department of Physics, Kirklareli University, Kirklareli, 39100, Turkey |
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| Abstract: | The results of a systematic study of a series of dichalcogenides MS2 (M = Ti, Zr, Ta, Mo, W) by X-ray photoelectron spectroscopy (XPS) are reported. Variations in the S 2p binding energies and the valence band spectra are analysed. Through theoretical and experimental comparisons attempts are made to rationalize the observed variations in terms of qualitative and quantitative arguments (“real” atomic charges on sulfur atoms, specific electronic interactions). |
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