Yoon, Songhak ; Xie, Wenjie ; Xiao, Xingxing ; Checchia, Stefano ; Coduri, Mauro ; Schuetzenduebe, Peter ; Widenmeyer, Marc ; Ebbinghaus, Stefan G. ; Balke, Benjamin ; Weidenkaff, Anke ; Schütz, Gisela ; Son, Kwanghyo (2023)
Site‐selective substitution and resulting magnetism in arc‐melted perovskite ATiO₃₋δ (A = Ca, Sr, Ba).
In: Journal of the American Ceramic Society, 2023, 106 (11)
doi: 10.26083/tuprints-00024675
Artikel, Zweitveröffentlichung, Verlagsversion
 | Es ist eine neuere Version dieses Eintrags verfügbar. |
Kurzbeschreibung (Abstract)
Magnetic properties in perovskite titanates ATiO₃₋δ (A = Ca, Sr, Ba) were investigated before and after arc melting. Crystal structure analysis was conducted by powder synchrotron X‐ray diffraction with Rietveld refinements. Quantitative chemical element analysis was carried out by X‐ray photoelectron spectroscopy. Magnetic measurements were conducted by vibrating sample magnetometer and X‐ray magnetic circular dichroism (XMCD). The magnetic properties are found to be affected by impurities of 3d elements such as Fe, Co, and Ni. Depending on the composition and crystal structure, the occupation of the magnetic ions in perovskite titanates is selectively varied, which is interpreted to be the origin of the different magnetic behaviors in arc‐melted perovskite titanates ATiO₃₋δ (A = Ca, Sr, Ba). In addition, both formation of oxygen vacancies and the reduction of Ti⁴⁺ to Ti³⁺ during arc‐melting also play a role as proven by XMCD. Nevertheless, preferential site occupation of magnetic impurities is dominant in the magnetic properties of arc‐melted perovskite ATiO₃₋δ (A = Ca, Sr, Ba).
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2023 |
| Autor(en): | Yoon, Songhak ; Xie, Wenjie ; Xiao, Xingxing ; Checchia, Stefano ; Coduri, Mauro ; Schuetzenduebe, Peter ; Widenmeyer, Marc ; Ebbinghaus, Stefan G. ; Balke, Benjamin ; Weidenkaff, Anke ; Schütz, Gisela ; Son, Kwanghyo |
| Art des Eintrags: | Zweitveröffentlichung |
| Titel: | Site‐selective substitution and resulting magnetism in arc‐melted perovskite ATiO₃₋δ (A = Ca, Sr, Ba) |
| Sprache: | Englisch |
| Publikationsjahr: | 7 November 2023 |
| Ort: | Darmstadt |
| Publikationsdatum der Erstveröffentlichung: | 2023 |
| Ort der Erstveröffentlichung: | Oxford |
| Verlag: | Wiley-Blackwell |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Journal of the American Ceramic Society |
| Jahrgang/Volume einer Zeitschrift: | 106 |
| (Heft-)Nummer: | 11 |
| DOI: | 10.26083/tuprints-00024675 |
| URL / URN: | https://tuprints.ulb.tu-darmstadt.de/24675 |
| Zugehörige Links: | |
| Herkunft: | Zweitveröffentlichung DeepGreen |
| Kurzbeschreibung (Abstract): | Magnetic properties in perovskite titanates ATiO₃₋δ (A = Ca, Sr, Ba) were investigated before and after arc melting. Crystal structure analysis was conducted by powder synchrotron X‐ray diffraction with Rietveld refinements. Quantitative chemical element analysis was carried out by X‐ray photoelectron spectroscopy. Magnetic measurements were conducted by vibrating sample magnetometer and X‐ray magnetic circular dichroism (XMCD). The magnetic properties are found to be affected by impurities of 3d elements such as Fe, Co, and Ni. Depending on the composition and crystal structure, the occupation of the magnetic ions in perovskite titanates is selectively varied, which is interpreted to be the origin of the different magnetic behaviors in arc‐melted perovskite titanates ATiO₃₋δ (A = Ca, Sr, Ba). In addition, both formation of oxygen vacancies and the reduction of Ti⁴⁺ to Ti³⁺ during arc‐melting also play a role as proven by XMCD. Nevertheless, preferential site occupation of magnetic impurities is dominant in the magnetic properties of arc‐melted perovskite ATiO₃₋δ (A = Ca, Sr, Ba). |
| Freie Schlagworte: | arc‐melting, magnetism, perovskite oxide, synchrotron X‐ray diffraction, X‐ray magnetic circular dichroism |
| Status: | Verlagsversion |
| URN: | urn:nbn:de:tuda-tuprints-246759 |
| Zusätzliche Informationen: | The authors are grateful to European Synchrotron Radiation Facility (ESRF), the synchrotron light source KARA and the Karlsruhe Nano Micro Facility (KNMF) for the provision of beamtimes. The authors are indebted to Mr. Samir Hammoud at the Max Planck Institute for Intelligent Systems for the chemical analysis (ICP-OES, hot gas extraction). Open Access funding enabled and organized by Project DEAL. |
| Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 500 Naturwissenschaften und Mathematik > 530 Physik 500 Naturwissenschaften und Mathematik > 540 Chemie |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Werkstofftechnik und Ressourcenmanagement |
| Hinterlegungsdatum: | 07 Nov 2023 12:37 |
| Letzte Änderung: | 19 Jul 2024 10:46 |
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Verfügbare Versionen dieses Eintrags
- Site‐selective substitution and resulting magnetism in arc‐melted perovskite ATiO₃₋δ (A = Ca, Sr, Ba). (deposited 07 Nov 2023 12:37) [Gegenwärtig angezeigt]
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