TY  - JOUR
AU  - Manea, Nafea
AU  - Welter, Edmund
AU  - Priolkar, Kaustubh
TI  - Factors influencing the martensitic transformation in Ni–Mn–Z (Z = Ga, Sn) Heusler alloys
JO  - Journal of physics / D
VL  - 57
IS  - 14
SN  - 0022-3727
CY  - Bristol
PB  - IOP Publ.
M1  - PUBDB-2024-00641
SP  - 145304
PY  - 2024
N1  - Waiting for fulltext 
AB  - The martensitic transition temperature of the Ni–Mn–Z (Z = Ga, In, Sn or Sb) generally scales with the average valence electron per atom (e/a) ratio. The (e/a) ratio can be increased either by increasing Ni content in lieu of Mn or Z (Ni-rich) or by substituting Mn for Z (Mn-rich). While the Mn-rich alloys display the expected scaling behaviour of the martensitic transition temperature, the Ni-rich alloys, with the exception of Z = Ga alloys, do not exhibit any dependency on the (e/a) ratio. By carefully studying and comparing the structure, local structure and the physical properties of the Ni-rich and Mn-rich Ni–Mn–Ga and Ni–Mn–Sn alloys, the cause of the difference in behaviour is identified. The off-stoichiometry brought about by increasing the Ni or Mn content, results in the formation of a new local structural environment in addition to the Heusler-like environment. If either of the two local structural environments is martensitic, then the resulting Ni-rich or Mn-rich alloy also exhibits martensitic transformation.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:001144263800001
DO  - DOI:10.1088/1361-6463/ad19b5
UR  - https://bib-pubdb1.desy.de/record/602521
ER  -