Eggert, Benedikt ; Çakır, Aslı ; Günzing, Damian ; Josten, Nicolas ; Scheibel, Franziska ; Brand, Richard A. ; Farle, Michael ; Acet, Mehmet ; Wende, Heiko ; Ollefs, Katharina (2023)
Formation of precipitates in off-stoichiometric Ni–Mn–Sn Heusler alloys probed through the induced Sn-moment.
In: RSC Advances, 13 (27)
doi: 10.1039/D3RA01420G
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
The shell-ferromagnetic effect originates from the segregation process in off-stoichiometric Ni–Mn-based Heusler alloys. In this work, we investigate the precipitation process of L21-ordered Ni2MnSn and L10-ordered NiMn in off-stoichiometric Ni50Mn45Sn5 during temper annealing, by X-ray diffraction (XRD) and 119Sn Mössbauer spectroscopy. While XRD probes long-range ordering of the lattice structure, Mössbauer spectroscopy probes nearest–neighbour interactions, reflected in the induced Sn magnetic moment. As shown in this work, the induced magnetic Sn moment can be used as a detector for microscopic structural changes and is, therefore, a powerful tool for investigating the formation of nano-precipitates. Similar research can be performed in the future, for example, on different pinning type magnets like Sm-Co or Nd-Fe-B.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2023 |
| Autor(en): | Eggert, Benedikt ; Çakır, Aslı ; Günzing, Damian ; Josten, Nicolas ; Scheibel, Franziska ; Brand, Richard A. ; Farle, Michael ; Acet, Mehmet ; Wende, Heiko ; Ollefs, Katharina |
| Art des Eintrags: | Bibliographie |
| Titel: | Formation of precipitates in off-stoichiometric Ni–Mn–Sn Heusler alloys probed through the induced Sn-moment |
| Sprache: | Englisch |
| Publikationsjahr: | 15 Juni 2023 |
| Verlag: | RSC Publishing |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | RSC Advances |
| Jahrgang/Volume einer Zeitschrift: | 13 |
| (Heft-)Nummer: | 27 |
| DOI: | 10.1039/D3RA01420G |
| Kurzbeschreibung (Abstract): | The shell-ferromagnetic effect originates from the segregation process in off-stoichiometric Ni–Mn-based Heusler alloys. In this work, we investigate the precipitation process of L21-ordered Ni2MnSn and L10-ordered NiMn in off-stoichiometric Ni50Mn45Sn5 during temper annealing, by X-ray diffraction (XRD) and 119Sn Mössbauer spectroscopy. While XRD probes long-range ordering of the lattice structure, Mössbauer spectroscopy probes nearest–neighbour interactions, reflected in the induced Sn magnetic moment. As shown in this work, the induced magnetic Sn moment can be used as a detector for microscopic structural changes and is, therefore, a powerful tool for investigating the formation of nano-precipitates. Similar research can be performed in the future, for example, on different pinning type magnets like Sm-Co or Nd-Fe-B. |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Funktionale Materialien |
| Hinterlegungsdatum: | 22 Jan 2024 07:31 |
| Letzte Änderung: | 22 Jan 2024 08:01 |
| PPN: | 514874384 |
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