The second-order magnetic phase transition and magnetocaloric effect in all-d-metal NiCoMnTi-based Heusler alloys

Zhang, Fengqi; Westra, K. E.; Shen, Qi; Batashev, Ivan; Kiecana, Anika; Dijk, Niels van; Brück, E.

doi:10.1016/j.jallcom.2022.164337

Cited by 41 publications

(14 citation statements)

References 43 publications

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“…However, they suffer from hysteresis losses [21][22][23][24] , degradation caused by mechanical failure due to large volume changes 20,25 and reduced magnetocaloric effects during cyclic magnetic field application 26,27 . Materials with second-order phase transitions, specifically the magnetic transition from ferro-to paramagnetic state at the Curie temperature 𝑇 𝐶 , are for instance Gd 28 , Gd-Y 8 , high entropy transition metal NiFeCoCrPd0.5 alloys 29 , Ni-Mn-based Heusler alloys 30,31 and Fe2AlB2 32,33 . It should be noted that Ni-Mn-based Heusler alloys can show both magnetostructural martensitic first-order phase transitions [13][14][15] and magnetic second-order phase transitions at 𝑇 𝐶 of the ferromagnetic phase 30,31 .…”

Section: Introductionmentioning

confidence: 99%

“…Materials with second-order phase transitions, specifically the magnetic transition from ferro-to paramagnetic state at the Curie temperature 𝑇 𝐶 , are for instance Gd 28 , Gd-Y 8 , high entropy transition metal NiFeCoCrPd0.5 alloys 29 , Ni-Mn-based Heusler alloys 30,31 and Fe2AlB2 32,33 . It should be noted that Ni-Mn-based Heusler alloys can show both magnetostructural martensitic first-order phase transitions [13][14][15] and magnetic second-order phase transitions at 𝑇 𝐶 of the ferromagnetic phase 30,31 . Due to the absence of large volume changes and hysteresis, second-order phase transition materials show highly stable and reversible magnetocaloric effects.…”

Section: Introductionmentioning

confidence: 99%

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Reactive single-step hot-pressing and magnetocaloric performance of polycrystalline Fe2Al1.15−xB2GexGax (x = 0, 0.05) MAB phases

Beckmann

El-Melegy

Koch

et al. 2023

Journal of Applied Physics

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Reactive single-step hot-pressing at 1473 K and 35 MPa for 4 h produces dense, bulk, near single-phase, low-cost, and low-criticality Fe2Al1.15B2 and Fe2Al1.1B2Ge0.05Ga0.05 MAB samples, showing second-order magnetic phase transition with favorable magnetocaloric properties around room temperature. The magnetic as well as the magnetocaloric properties can be tailored upon Ge and Ga doping, leading to an increase in the Curie temperature TC and the spontaneous magnetization mS. The maximum isothermal entropy change ΔsT,max of hot-pressed Fe2Al1.15B2 in magnetic field changes of 2 and 5 T amounts to 2.5 and 5 J(kgK)−1 at 287.5 K and increases by Ge and Ga addition to 3.1 and 6.2 J(kgK)−1 at 306.5 K, respectively. The directly measured maximum adiabatic temperature change ΔTad,max is improved by composition modification from 0.9 to 1.1 K in magnetic field changes of 1.93 T. Overall, we demonstrate that hot-pressing provides a much faster, more scalable, and processing costs reducing alternative compared to conventional synthesis routes to produce heat exchangers for magnetic cooling devices. Therefore, our criticality assessment shows that hot-pressed Fe-based MAB phases provide a promising compromise of material and processing costs, criticality, and magnetocaloric performance, demonstrating the potential for low-cost and low-criticality magnetocaloric applications around room temperature.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Reactive single-step hot-pressing and magnetocaloric performance of polycrystalline Fe2Al1.15−xB2GexGax (x = 0, 0.05) MAB phases

Beckmann

El-Melegy

Koch

et al. 2023

Journal of Applied Physics

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“…However, these materials often suffer from hysteresis losses, 34−37 mechanical failures caused by volume changes, 33,38 and reduced cyclic magnetic field performance. 39,40 On the other hand, materials with second-order phase transitions (specifically magnetic transition from the ferro-to the paramagnetic state at the Curie temperature), including Gd, 41 Gd−Y, 21 highentropy transition-metal NiFeCoCrPd 0.5 alloys, 42 Ni−Mnbased Heusler alloys, 43,44 and Fe 2 AlB 2 , 45,46 offer stable and reversible MCEs without significant volume changes or hysteresis. Among the various magnetocaloric materials, Gd has been widely regarded as the benchmark material for roomtemperature magnetocaloric devices.…”

Section: ■ Introductionmentioning

confidence: 99%

“…A wide range of magnetocaloric materials exhibit first- and/or second-order phase transitions, each with its advantages and limitations. , Materials with first-order phase transitions, such as Gd 5 (SiGe) 4 , Fe–Rh, , Ni–Mn-based Heusler alloys, − and certain compound types such as La(Fe,Si) 13 − and Fe 2 P, , demonstrate significant MCEs due to field-induced magnetostructural transitions. However, these materials often suffer from hysteresis losses, − mechanical failures caused by volume changes, , and reduced cyclic magnetic field performance. , On the other hand, materials with second-order phase transitions (specifically magnetic transition from the ferro- to the paramagnetic state at the Curie temperature), including Gd, Gd–Y, high-entropy transition-metal NiFeCoCrPd 0.5 alloys, Ni–Mn-based Heusler alloys, , and Fe 2 AlB 2 , , offer stable and reversible MCEs without significant volume changes or hysteresis. Among the various magnetocaloric materials, Gd has been widely regarded as the benchmark material for room-temperature magnetocaloric devices. , However, the high cost and criticality of Gd have impeded its widespread commercial utilization. − As an alternative, Fe 2 AlB 2 -type MAB (Mn–Al–B) phases have emerged as promising candidates for room-temperature magnetocaloric applications due to their low cost, low criticality, and scalability. , Moreover, Fe 2 AlB 2 exhibits remarkable mechanical and thermal properties, including high strength, good thermal conductivity, and thermal stability.…”

Section: Introductionmentioning

confidence: 99%

Exploring Doping Effects on Magnetocaloric, Magnetoelastic, and Magnetostriction Properties of Fe₂AlB₂: A First-Principles Study

Samanta,

Loh,

Çakır

2024

J. Phys. Chem. C

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Fe 2 AlB 2 boasts promising magnetocaloric properties and anisotropic magnetic behavior. This study explores the impact of elemental substitutions on its magnetic and magnetocaloric properties using density functional theory, the cluster expansion method, and Monte Carlo simulations. Results show that doping at Fe or B sites induces a rotation of the easy axis of magnetization and noticeably changes the magnitude of magnetic anisotropy energy. Predicted Curie temperatures are 308, 210, and 359 K for Fe 2 AlB 2 , Fe 2 GaB 2 , and Fe 2 SiB 2 , respectively. The magnetic entropy change exhibits anisotropic behavior, especially near the transition temperature. Interestingly, full substitution of Al with Ga or Si does not significantly enhance the magnetic entropy change, suggesting other factors play a dominant role in enhancing magnetocaloric properties of these materials. Therefore, our study delves into magnetostructural coupling and defect formation due to partial chemical substitutions. The C doping induces substantial lattice parameter changes, Si, Ga, and Ge doping improves magnetocaloric properties, while Cr and V doping reduces magnetostructural coupling. Antisite defect formation at the Al site are induced by Fe near Ga, Ge, and Si atoms, indicating enhanced defect formation and increased saturation magnetization. Fe 2 AlB 2 exhibits anisotropic features in its magnetoelastic constants and magnetostrictive coefficients. This implies that the material's response to changes in magnetic fields is contingent on the orientation of its crystal lattice, and, additionally, Fe 2 AlB 2 can experience expansion or contraction along distinct crystallographic directions in response to alterations in the magnetization direction.

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“…Therefore, a material having a working temperature near phase transition is very crucial in this regard. The MCE materials are categorized into two classes based on the phase transitions: (a) materials showing magneto-structural transition and (b) materials undergoing second-order magnetic transition [14,15].…”

Section: Introductionmentioning

confidence: 99%

Hysteresis-free reversible magnetocaloric effect and critical behavior of Ni_39.56Fe_7.27Co_2.97Mn_40.65Sn_9.55 full heusler alloy

Biswal,

Panda,

Datta

et al. 2024

Phys. Scr.

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Utilizing the magnetocaloric effect (MCE), magnetic refrigeration technology offers an advantage over traditional gas-based refrigerators, which produce harmful gases. Herein, we study the MCE and critical magnetic behavior of Fe and Co substituted Ni39.56Fe7.27Co2.97Mn40.65Sn9.55 Heusler alloy near the paramagnetic (PM) to ferromagnetic (FM) transition temperature. With Fm3 ̅m space group, the present sample crystallizes in cubic L21 structure. Arrott plots and hysteresis-free continuous phase transition confirm a second-order transition from FM to PM. Again, this second-order transition is verified by collapsing scaled entropy curves for various fields into a single universal curve. The critical exponent values obtained using several analytical techniques, like the Kouvel-Fisher method, modified Arrott plot, and critical isotherm, correspond to the mean-field theory universality class having long-range ordering. The above findings suggest our sample to be a suitable magnetic refrigerant by overcoming the difficulty of obtaining a reversible and high value of magnetic entropy change along with substantial relative cooling power across the second-order phase transition.

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The second-order magnetic phase transition and magnetocaloric effect in all-d-metal NiCoMnTi-based Heusler alloys

Cited by 41 publications

References 43 publications

Reactive single-step hot-pressing and magnetocaloric performance of polycrystalline Fe2Al1.15−xB2GexGax (x = 0, 0.05) MAB phases

Reactive single-step hot-pressing and magnetocaloric performance of polycrystalline Fe2Al1.15−xB2GexGax (x = 0, 0.05) MAB phases

Exploring Doping Effects on Magnetocaloric, Magnetoelastic, and Magnetostriction Properties of Fe₂AlB₂: A First-Principles Study

Hysteresis-free reversible magnetocaloric effect and critical behavior of Ni_39.56Fe_7.27Co_2.97Mn_40.65Sn_9.55 full heusler alloy

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The second-order magnetic phase transition and magnetocaloric effect in all-d-metal NiCoMnTi-based Heusler alloys

Cited by 41 publications

References 43 publications

Reactive single-step hot-pressing and magnetocaloric performance of polycrystalline Fe2Al1.15−xB2GexGax (x = 0, 0.05) MAB phases

Reactive single-step hot-pressing and magnetocaloric performance of polycrystalline Fe2Al1.15−xB2GexGax (x = 0, 0.05) MAB phases

Exploring Doping Effects on Magnetocaloric, Magnetoelastic, and Magnetostriction Properties of Fe2AlB2: A First-Principles Study

Hysteresis-free reversible magnetocaloric effect and critical behavior of Ni39.56Fe7.27Co2.97Mn40.65Sn9.55 full heusler alloy

Contact Info

Product

Resources

About

Exploring Doping Effects on Magnetocaloric, Magnetoelastic, and Magnetostriction Properties of Fe₂AlB₂: A First-Principles Study

Hysteresis-free reversible magnetocaloric effect and critical behavior of Ni_39.56Fe_7.27Co_2.97Mn_40.65Sn_9.55 full heusler alloy