Effect of the main-group elements on the electronic structures and magnetic properties of Heusler alloys Mn2NiZ (Z=In, Sn, Sb)

First principles study of a new half-metallic ferrimagnets Mn2-based full Heusler compounds: Mn2ZrSi and Mn2ZrGe

“…Ever after, HM ferromagnetism has been observed in many materials, such as Heusler alloys [8][9][10][11][12][13] which play an important role in spintronics applications because of their high Curie temperature and structural coherence with the zinc-blende structure of binary semiconductors used industrially. Besides, a new ferromagnetic shape memory alloys (FSMAs) have been reported in some Heusler alloys [14][15][16] which have motivated scientific researchers to find new functional materials in these alloys.…”

Martensitic transformation and magnetocaloric effect in Mn–Ni–Nb–Sn shape memory alloys: The effect of 4d transition-metal doping

“…For alloys with x = 3, single cubic austenitic phase can be observed, suggesting that the MT temperature is below room temperature. Previous investigations in Ni-Mn-Sn alloys show that the austenitic phase could be have a cubic L2 1 structure (Fm3m) [2], Hg 2 CuTi structure (F43m) [19,20], or B2 structure (Pm3m) [2] depending on composition, and it can be determined by the existence of superlattice reflections and relative intensity of (1 1 1) and (2 0 0) reflections. Weak superlattice (1 1 1) and (2 0 0) reflections can be seen in Fig.…”

Magnetostructural transition behavior in Fe-doped Heusler Mn–Ni–In ribbon materials

“…For example, Aguilar-Ortiz et al reported giant room-temperature inverse magnetocaloric effect in Ni 42 Fe 8 Mn 40 Sn 10 ribbons, where the magnetic entropy change across the martensitic transformation reached 11 J kg À 1 K À 1 under a magnetic change of 50 kOe, whereas the maximum magnetic entropy change dramatically decreased to 2 J kg À 1 K À 1 in Ni 50 Mn 40 Sn 10 ribbons because the latter martensitic transformation happened between paramagnetic austenite and weak-magnetic martensite [10]. Recently, more studies focused on the Mn-rich Heusler Mn-Ni-In materials because it was expected to hold the promise for higher saturation magnetization materials [11][12][13]. Wu et al [14] observed improved magnetization discrepancy between austenite and martensite in Mn 50 Ni 37 Co 3 In 10 alloy.…”