Enhanced magnetic refrigeration performance in metamagnetic MnCoSi alloy by high-pressure annealing

Liu, Jun; Si, Yu; Gong, Yuanyuan; Xu, Guizhou; Liu, Er; Xu, Feng; Wang, Dunhui

doi:10.1016/j.jallcom.2017.01.161

Cited by 16 publications

(6 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, the cryogenic giant magnetostriction of MnCoSi has rarely been reported. It is worth mentioning that the meta-magnetic transition from the antiferromagnetic (AFM) state to the ferromagnetic (FM) state in MnCoSi is sensitive to external pressure [ 28 ]. Zavorotnev et al have reported that ferromagnetic occurrence was induced by hydrostatic pressure in the antiferromagnetic region of MnCoSi alloy [ 29 ].…”

Section: Introductionmentioning

confidence: 99%

“…Zavorotnev et al have reported that ferromagnetic occurrence was induced by hydrostatic pressure in the antiferromagnetic region of MnCoSi alloy [ 29 ]. Liu et al have demonstrated that pressure-induced enhanced magnetocaloric effect decreased the critical magnetic field of the MnCoSi alloy [ 15 , 28 ]. Compared under ambient pressure, the maximum magnetic entropy change of MnCoSi alloy at magnetic field 0 ~ 5 T was improved by 35.7% when a 3.2 kbar hydrostatic pressure was applied [ 15 ].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Large Cryogenic Magnetostriction Induced by Hydrostatic Pressure in MnCo0.92Ni0.08Si Alloy

et al. 2023

View full text Add to dashboard Cite

Giant magnetostriction could be achieved in MnCoSi-based alloys due to the magneto-elastic coupling accompanied by the meta-magnetic transition. In the present work, the effects of hydrostatic pressure on magnetostrictive behavior in MnCo0.92Ni0.08Si alloy have been investigated. The saturation magnetostriction (at 30,000 Oe) could be enhanced from 577 ppm to 5034 ppm by the hydrostatic pressure of 3.2 kbar at 100 K. Moreover, under a magnetic field of 20,000 Oe, the reversible magnetostriction was improved from 20 ppm to 2112 ppm when a hydrostatic pressure of 6.4 kbar was applied at 70 K. In all, it has been found that the magnetostrictive effect of the MnCo0.92Ni0.08Si compound is strongly sensitive to external hydrostatic pressure. This work proves that the MnCoSi-based alloys as a potential cryogenic magnetostrictive material can be modified through applied hydrostatic pressure.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Large Cryogenic Magnetostriction Induced by Hydrostatic Pressure in MnCo0.92Ni0.08Si Alloy

et al. 2023

View full text Add to dashboard Cite

show abstract

“…Equiatomic intermetallic T T X compounds (T : electronpoor transition metal, T : electron-rich transition metal, X : P, As, and Si) have been widely investigated in the least 50 years with respect to their interesting structural [1][2][3][4][5][6][7][8][9][10][11][12][13] and magnetic [14][15][16][17][18][19][20][21][22][23][24][25][26] properties. Related to the size and the electron count of the transition metal, these compounds either exist in the orthorhombic TiNiSi-type structure [1] or the hexagonal ZrNiAl-type structure [3].…”

Section: Introductionmentioning

confidence: 99%

Investigating the normal state and superconducting state properties of orthorhombic and hexagonal ZrRuP: A first-principles study

et al. 2019

View full text Add to dashboard Cite

We have executed ab initio pseudopotential calculations on the structural, electronic, elastic, mechanical, vibrational, and electron-phonon interaction properties of hexagonal ZrRuP (h-ZrRuP) and orthorhombic ZrRuP (o-ZrRuP). The electronic states of both phases near the Fermi energy are found to be dominated by the d electrons of transition metal atoms, suggesting that they play a more active role in the generation of superconducting state for both phases of ZrRuP. A critical assessment of their elastic and mechanical properties reveals that the lattice of h-ZrRuP is softer than that of o-ZrRuP. A comparison of phonon dispersion curves for both phases indicates that the lower transverse acoustic branch of h-ZrRuP is much softer than that of o-ZrRuP. The soft character of this phonon branch gives rise to strong electron-phonon interaction in h-ZrRuP. Therefore the electron-phonon coupling parameter for h-ZrRuP equals to 1.25 which is considerably larger than the corresponding value of 0.57 for o-ZrRuP. As a consequence, phonon and electron-phonon interaction properties are crucial in making superconducting transition temperature much higher for h-ZrRuP than o-ZrRuP. At the end, the value of this temperature is found to be 12.49 K for h-ZrRuP and 3.89 K for o-ZrRuP which coincide with their experimental values of 12.93 and 3.82 K.

show abstract

“…The only experiments that have been performed under high pressure recently refer to the Ge precipitation rate in Ge? ion-implanted SiO 2 films [16], a study on the effect of annealing under pressure on the material properties of Cu2ZnSn(S,Se)4 thin films [17] and an enhancement of magnetic refrigeration performance in metamagnetic MnCoSi alloy by high-pressure annealing [18].…”

Section: Introductionmentioning

confidence: 99%

“…The general conclusion that can be drawn from this work regarding grain growth is that the higher the hydrostatic pressure applied, the more significant the decrease in grain boundary mobility. Moreover, the impact of high pressure on the \100[, \110[ and \111[ tilt boundaries was analyzed [18,22]. The results showed that the movement of \110[ tilt boundaries depends on the activation energy, as this movement is effected by the cooperative motion of several atoms.…”

Section: Introductionmentioning

confidence: 99%

Recrystallization and grain growth of a nano/ultrafine structured austenitic stainless steel during annealing under high hydrostatic pressure

et al. 2018

View full text Add to dashboard Cite

The aim of this study was to investigate the effect of high hydrostatic pressure applied during annealing on the processes of recrystallization and grain growth in nanostructured austenitic stainless steel 316LVM. The nanostructures were obtained by profile rolling to a total strain of 3.4 and by high-pressure torsion to a total strain of 79. These processes resulted in microstructures consisting of nanotwins and nanograins, respectively. The deformed samples were annealed at 900°C for 10 min under atmospheric or hydrostatic pressures of 2 and 6 GPa. The resulting microstructures were examined using transmission and scanning electron microscopy techniques. The mechanical properties were evaluated in microhardness measurements. It was established that annealing under high hydrostatic pressure retards recrystallization and grain growth, both in profilerolled and high-pressure torsion-processed samples. The magnitude of retardation depends on the character of the grain boundaries. The non-equilibrium high-angle grain boundaries present in the high-pressure torsion-processed sample show higher mobility under pressure than the nanotwinned and lowangle boundaries in the profile-rolled sample.

show abstract

Enhanced magnetic refrigeration performance in metamagnetic MnCoSi alloy by high-pressure annealing

Cited by 16 publications

References 41 publications

Large Cryogenic Magnetostriction Induced by Hydrostatic Pressure in MnCo0.92Ni0.08Si Alloy

Large Cryogenic Magnetostriction Induced by Hydrostatic Pressure in MnCo0.92Ni0.08Si Alloy

Investigating the normal state and superconducting state properties of orthorhombic and hexagonal ZrRuP: A first-principles study

Recrystallization and grain growth of a nano/ultrafine structured austenitic stainless steel during annealing under high hydrostatic pressure

Contact Info

Product

Resources

About