Kinetic arrest of the first order austenite to martensite phase transition inNi50Mn34In16: dc magnetization studies

Kinetic-arrest-induced phase coexistence and metastability in(Mn,Fe)2(P,Si)

“…A similar phenomenon has been reported in diverse classes of magnetic systems, such as Gd 5 Ge 4 [16], Ni-Mn-X based Heusler alloys [17][18][19], doped-FeRh [20], Nd 7 Rh 13 [21], Tb 4 LuSi 3 [22], and manganites [23][24][25][26][27]. The kinetically arrested phase transition is associated with a strong magne-* x.f.miao@tudelft.nl tostructural coupling in these magnetic systems.…”

“…2(b)] and S3 [see Fig. 2(d)], although the transition is still incomplete up to 5 T. Such anomalies have been observed in a variety of magnetic materials, and originate from incomplete first-order phase transition caused by kinetic arrest [17,24,40]. One predominant consequence of the kinetic-arrest effect is the coexistence of transformed and untransformed phases at temperatures far below the phase-transition temperature.…”

“…With the decrease in temperature, the relaxation becomes less pronounced. The KohlrauschWilliams-Watt stretched exponential function [51,52] (t) ∝ exp[−(t/τ ) β ] has been widely used to describe the magnetic relaxation behavior in kinetically arrested systems [13,16,17], where τ is the characteristic relaxation time and β is a shape parameter. The relaxation data below 20 K can be fit well using the stretched exponential function with β = 0.18, while noticeable deviations appear above 20 K. The τ increases markedly with decreasing temperature due to the reduction in thermal fluctuation, as shown in the inset of Fig.…”

Large magnetocaloric effects in magnetic intermetallics: First-principles and Monte Carlo studies

“…Magnetic superelasticity is involved in the stabilization of the phase with highest magnetization in an external magnetic field [5,6]. In addition to shape memory and superelasticity, these alloys (ternary magnetic shape memory Heusler alloys of type Ni-(Co)-Mn-(Cr)-(Al, Ga, In, Sn, Sb)) exhibit magnetocaloric (conventional and inverse) [7,8,9], barocaloric [10] and elastocaloric [11] effects, magnetoresistance [12], exchange bias [13] and kinetic arrest [14]. Also spin-glass [15] and strain-glass [16] features have been reported on several of these Heusler alloys.…”

First order magneto-structural transition and magnetocaloric effect in MnNiGe0.9Ga0.1

“…-Heusler alloys with magnetostructural transition (MST) are receiving increasing attention in current condensed matter physics due to their fundamental and technological relevance. In such materials, manifestation of MST often gives rise to interesting properties such as magnetocaloric effect (MCE) [1,2],magnetoresistance [3,4], field induced shape memory/strain effect [5,6], glass like magnetic states [7,8] etc. In particular, magnetic refrigeration based on the MCE has been thought as a possible alternative for the vapour compression refrigeration technique, though it is far from being possible.…”