Magnetic properties and excellent cryogenic magnetocaloric performances in B-site ordered RE2ZnMnO6 (RE = Gd, Dy and Ho) perovskites

Li, Lingwei; Peng, Xianghe; Ye, Shuaikun; Li, Yong; Liu, Guodong; Huo, Dexuan; Yan, Mi

doi:10.1016/j.actamat.2020.05.036

Cited by 204 publications

(41 citation statements)

References 55 publications

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“…1a. Similar to other reported all-dmetal alloys in cubic phase [15,17,21,[40][41][42], the present three samples show ordered B2-type cubic structure and no impure phases can be observed. The miller indices of (220), (400), and (422) are indexed in the corresponding peaks.…”

Section: Resultssupporting

confidence: 91%

“…The MCE is a magnetothermodynamic response which manifests the temperature (entropy) change of magnetic solids by applying or removing the magnetic field. Thus, plenty of magnetic solids have been systematically investigated in the last thirty years, and some of them are reported to exhibit large MCEs, such as La(Fe,Si) 13 H x , selected heavy rare earth (RE)-based compounds, MnTMX (TM = Fe, Co, and Ni; X = Ge and Si), as well as NiMn-based Heusler alloys with first-order magnetostructural transitions (MSTs) [9][10][11][12][13][14][15][16][17][18]. However, a large gap between the developing of magnetocaloric materials and the active MC applications still exists at the present stage.…”

Section: Introductionmentioning

confidence: 99%

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Enhanced magnetocaloric performances and tunable martensitic transformation in Ni35Co15Mn35−xFexTi15 all-d-metal Heusler alloys by chemical and physical pressures

Qin

Huang

et al. 2021

Sci. China Mater.

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The solid-state magnetic cooling (MC) method based on the magnetocaloric effect (MCE) is recognized as an environmentally friendly and high-energy-efficiency technology. The search or design of suitable magnetic materials with large MCEs is one of the main targets at present. In this work, we apply the chemical and hydrostatic pressures in the Ni 35 Co 15 Mn 35−x Fe x Ti 15 all-d-metal Heusler alloys and systematically investigate their crystal structures, phases, and magnetocaloric performances experimentally and theoretically. All the alloys are found to crystallize in an ordered B2-type structure at room temperature and the atoms of Fe are confirmed to all occupy at sites Mn(B). The total magnetic moments decrease gradually with increasing Fe content and decreasing of volume as well. The martensitic transformation temperature decreases with the increase of Fe content, whereas increases with increasing hydrostatic pressure. Moreover, obviously enhanced magnetocaloric performances can also be obtained by applied pressures. The maximum values of magnetic entropy change and refrigeration capacity are as high as 15.61(24.20) J (kg K) −1 and 109.91(347.26) J kg −1 with ΔH = 20(50) kOe, respectively. These magnetocaloric performances are superior to most of the recently reported famous materials, indicating the potential application for active MC.

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Section: Resultssupporting

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Enhanced magnetocaloric performances and tunable martensitic transformation in Ni35Co15Mn35−xFexTi15 all-d-metal Heusler alloys by chemical and physical pressures

Qin

Huang

et al. 2021

Sci. China Mater.

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“…Materials undergoing magnetostructural transition [5] and other crystalline materials [6,7] have recently been extensively studied and are still of high importance. On the other hand, rare earth-based oxides have become an important new area of exploration in the search for new magnetocaloric materials [8,9]. Recently, vitreous materials [10][11][12][13] have also emerged as attractive research objects due to a combination of excellent soft magnetic properties, corrosion resistance, nearly zero magnetic hysteresis losses and their considerable ability to tune Curie temperatures [14][15][16].…”

Section: Graphical Abstract Introductionmentioning

confidence: 99%

Tunable magnetocaloric effect in amorphous Gd-Fe-Co-Al-Si alloys

et al. 2022

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A magnetocaloric effect with wide tunability was observed in melt-spun amorphous Gd65Fe15-xCo5+xAl10Si5 (x = 0, 5, 10) alloys of different Fe/Co ratios. Their magnetic properties were compared with those of the previously investigated parent alloy Gd65Fe10Co10Al15. The glassy structure of the melt-spun samples was confirmed by X-ray diffraction (XRD) and 57Fe Mössbauer spectrometry. Their Curie temperatures (TC) were between 155 and 195 K and increased significantly with decreasing Co content. The highest value of the magnetic entropy change ΔSM = − 6.8 J/kg K was obtained for Gd65Fe5Co15Al10Si5, when the magnetic field was increased from 0 to 5 T. Refrigerant capacity (RC) takes values close to 700 J/kg for the whole series of the alloys. The occurrence of the second-order phase transition and the conformity of the magnetic behavior with the mean field model were concluded on the basis of the analysis of the universal curves and the values of the exponent n (ΔSM ∝ Hn). Graphical abstract

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“…The vapor-compression refrigeration, a widely used technology in transportation, and residential, commercial, and industrial refrigeration, can no longer meet the current development needs due to its low efficiency, adverse environmental impact, and noise of the compressor. Several researchers have shifted their focus to magnetic refrigeration (MR) based on the magnetocaloric effect (MCE) of magnetic materials due to their distinguished performance without relying on any hazardous or ozonedepleting refrigerant gas and noise-free advantage [1][2][3][4][5][6][7]. The use of natural gas as well as H 2 , He, N 2 , and O 2 , is widely extended with several scientific, industrial, and commercial purposes.…”

Section: Introductionmentioning

confidence: 99%

First- and second-order phase transitions in RE6Co2Ga (RE = Ho, Dy or Gd) cryogenic magnetocaloric materials

et al. 2021

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Rare-earth (RE) rich intermetallics crystallizing in orthorhombic Ho6Co2Ga-type crystal structure exhibit peculiar magnetic properties that are not widely reported for their magnetic ordering, order of magnetic phase transition, and related magnetocaloric behavior. By tuning the type of RE element in RE6Co2Ga (RE = Ho, Dy or Gd) compounds, metamagnetic anti-to-paramagnetic (AF to PM) phase transitions could be tuned to ferro-to-paramagnetic (FM to PM) phase transitions. Furthermore, the FM ground state for Gd6Co2Ga is confirmed by density functional theory calculations in addition to experimental observations. The field dependence magnetocaloric and Banerjee’s criteria demonstrate that Ho6Co2Ga and Dy6Co2Ga undergo a first-order phase transition in addition to a second-order phase transition, whereas only the latter is observed for Gd6Co2Ga. The two extreme alloys of the series, Ho6Co2Ga and Gd6Co2Ga, show maximum isothermal entropy change (∣ΔS iso max (5 T)∣) of 10.1 and 9.1 J kg−1K−1 at 26 and 75 K, close to H2 and N2 liquefaction, respectively. This outstanding magnetocaloric effect performance makes the RE6Co2Ga series of potential for cryogenic magnetic refrigeration applications.

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Magnetic properties and excellent cryogenic magnetocaloric performances in B-site ordered RE2ZnMnO6 (RE = Gd, Dy and Ho) perovskites

Cited by 204 publications

References 55 publications

Enhanced magnetocaloric performances and tunable martensitic transformation in Ni35Co15Mn35−xFexTi15 all-d-metal Heusler alloys by chemical and physical pressures

Enhanced magnetocaloric performances and tunable martensitic transformation in Ni35Co15Mn35−xFexTi15 all-d-metal Heusler alloys by chemical and physical pressures

Tunable magnetocaloric effect in amorphous Gd-Fe-Co-Al-Si alloys

First- and second-order phase transitions in RE6Co2Ga (RE = Ho, Dy or Gd) cryogenic magnetocaloric materials

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