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  Valence State of Pb in Transition Metal Perovskites PbTMO3 (TM = Ti, Ni) Determined From X-Ray Absorption Near-Edge Spectroscopy

Chen, K., Mijiti, Y., Agrestini, S., Liao, S.-C., Li, X., Zhou, J., et al. (2018). Valence State of Pb in Transition Metal Perovskites PbTMO3 (TM = Ti, Ni) Determined From X-Ray Absorption Near-Edge Spectroscopy. Physica Status Solidi B, 255: 1800014, pp. 1-4. doi:10.1002/pssb.201800014.

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 Urheber:
Chen, Kai1, Autor
Mijiti, Yimin1, Autor
Agrestini, Stefano2, Autor           
Liao, Sheng-Chieh3, Autor           
Li, Xiang1, Autor
Zhou, Jianshi1, Autor
Di Cicco, Andrea1, Autor
Baudelet, Francois1, Autor
Tjeng, L. H.4, Autor           
Hu, Z.5, Autor           
Affiliations:
1External Organizations, ou_persistent22              
2Stefano Agrestini, Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863459              
3Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863445              
4Liu Hao Tjeng, Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863452              
5Zhiwei Hu, Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863461              

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Schlagwörter: perovskites, valence states, X-ray absorption near-edge spectroscopy
 Zusammenfassung: We present a combined experimental and theoretical Pb-L3 X-ray absorption near-edge spectroscopy (XANES) to investigate the chemical state of Pb in transition metal perovskites PbTMO3 (TM = Ti, Ni). A pre-edge feature originated from the excitation of a 2p core electron to the 6s orbital is only observed in PbNiO3, from which the valence of Pb is determined to be Pb4+ with two 6s holes. However, no such 2p–6s related excitation was observed in PbTiO3, indicating the formation of Pb2+ with fully occupied 6s2 state in this materials. Our results demonstrate that this pre-edge peak from dipole allowed 2p–6s transition is a sensitive finger-print of the Pb valence state in solid state materials.

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Sprache(n): eng - English
 Datum: 2018-02-282018-02-28
 Publikationsstatus: Erschienen
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: -
 Identifikatoren: DOI: 10.1002/pssb.201800014
 Art des Abschluß: -

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Titel: Physica Status Solidi B
  Kurztitel : Phys. Stat. Sol. B
Genre der Quelle: Zeitschrift
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Ort, Verlag, Ausgabe: Weinheim : Wiley-VCH
Seiten: - Band / Heft: 255 Artikelnummer: 1800014 Start- / Endseite: 1 - 4 Identifikator: ISSN: 0370-1972
CoNE: https://pure.mpg.de/cone/journals/resource/958480240330