Eggert, Benedikt; Çakır, Aslı; Günzing, Damian; Josten, Nicolas; Scheibel, Franziska; Brand, Richard A.; Farle, Michael; Acet, Mehmet; Wende, Heiko; Ollefs, Katharina:
Formation of precipitates in off-stoichiometric Ni–Mn–Sn Heusler alloys probed through the induced Sn-moment
In: RSC Advances, Vol. 13 (2023), pp. 18217 - 18222
2023article/chapter in journalOA Gold
Physics (incl. Astronomy)Faculty of PhysicsScientific institutes » Center for Nanointegration Duisburg-Essen (CENIDE)
Related: 1 publication(s)
Title in English:
Formation of precipitates in off-stoichiometric Ni–Mn–Sn Heusler alloys probed through the induced Sn-moment
Author:
Eggert, BenediktUDE
GND
1252416032
LSF ID
58893
ORCID
0000-0001-7739-3541ORCID iD
Other
connected with university
corresponding author
;
Çakır, Aslı
ORCID
0000-0003-4757-555XORCID iD
;
Günzing, DamianUDE
GND
1315732408
LSF ID
61446
ORCID
0000-0002-4350-5098ORCID iD
Other
connected with university
;
Josten, NicolasUDE
LSF ID
61435
ORCID
0009-0005-8543-8603ORCID iD
Other
connected with university
;
Scheibel, FranziskaUDE
LSF ID
55712
ORCID
0000-0001-7981-0871ORCID iD
Other
connected with university
;
Brand, Richard A.
ORCID
0000-0001-6009-8634ORCID iD
;
Farle, MichaelUDE
GND
1029383219
LSF ID
3560
ORCID
0000-0002-1864-3261ORCID iD
Other
connected with university
;
Acet, MehmetUDE
LSF ID
2917
ORCID
0000-0003-3601-1601ORCID iD
Other
connected with university
;
Wende, HeikoUDE
GND
12115226X
LSF ID
47290
ORCID
0000-0001-8395-3541ORCID iD
Other
connected with university
;
Ollefs, KatharinaUDE
LSF ID
50617
ORCID
0000-0002-2301-4670ORCID iD
Other
connected with university
Year of publication:
2023
Open Access?:
OA Gold
DuEPublico 2 ID
Web of Science ID
PubMed ID
Note:
OA Förderung 2023
Language of text:
English

Abstract in English:

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.