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Pakhira, Santanu; Mazumdar, Chandan; Ranganathan, R.

doi:10.1016/j.jmmm.2019.04.021

Cited by 9 publications

(5 citation statements)

References 45 publications

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“…Overview of the maximum mass magnetic entropy change for some Gd-based inorganic materials at cryogenic temperatures ( T ≤ 25 K). ,,,,− ,− …”

Section: Resultsmentioning

confidence: 99%

“…This makes Gd-based materials the most popular magnetocaloric refrigerants for cryogenic applications. The following materials are cited examples of promising Gd-based magnetocalorics: inorganic paramagnetic salts such as Gd 2 (SO 4 ) 3 ·8H 2 O, oxides such as Gd 3 Ga 5 O 12 , − Gd 2 FeCoO 6 , GdCrO 4 , , and GdVO 4 , intermetallics such as GdPd 2 Si, − borides, carbides, and borocarbides such as GdCo 2 B 2 , − and many molecular organometallic materials, including metal and cluster complexes, metal–organic frameworks, and polymers. ,− Note that for room-temperature refrigeration, while Gd 5 Si 2 Ge 2 is still a reference material, Mn-based compounds have become the best candidates as they are free of “critical” elements. − …”

Section: Introductionmentioning

confidence: 99%

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NaGdS₂: A Promising Sulfide for Cryogenic Magnetic Cooling

et al. 2022

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The development of effective and eco-friendly cooling technology demands an investigation of new magnetocaloric materials. Compounds containing gadolinium are one of the best candidates due to the large spin-only magnetic moment of Gd 3+ ion. This work reports on the magnetocaloric properties of the AGdS2 family (A = Li, Na, K, Rb) in relation to crystal chemistry of these compounds. These sulfides crystallize in two different structure-types: NaCl (A = Li) and -NaFeO2 (A = Na, K, Rb). Although one would expect the larger magnetocaloric effect to be associated to LiGdS2 due to its higher magnetic/non-magnetic mass ratio, our study demonstrates that the NaGdS2 member leads to the best properties among the investigated series. The change of structure from the 3D NaCl structure of LiGdS2 to the layered -NaFeO2 structure of NaGdS2 drastically improves the magnetocaloric properties.Hence, thanks to its structural features associated to negligible exchange interactions, NaGdS2 exhibits a magnetic entropy change up to 54 J kg -1 K -1 at 2.5 K for µ0H = 5 T, which is comparable to the top ranked inorganic Gd-based materials operating in the cryogenic temperature range. These magnetocaloric figures of merit provide evidence that Gd-based sulfides are promising materials for magnetic refrigeration and, more broadly, this highlights the potential of sulfides in that field.

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“…Overview of the maximum mass magnetic entropy change for some Gd-based inorganic materials at cryogenic temperatures ( T ≤ 25 K). ,,,,− ,− …”

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

NaGdS₂: A Promising Sulfide for Cryogenic Magnetic Cooling

et al. 2022

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“…These systems have generated great interest due to the interplay between crystal structure and ground state physical properties. Previous studies yield that most of the R 2 NiSi 3 -type of materials form in single phase only with defect crystal structure and also exhibit considerable MCE [17,18,19,20,21]. The study of MCE has also been used as an important tool to understand complex magnetic interaction in such systems [22].…”

Section: Magnetocaloric Effect (Mce) Based Solid State Refrigeration Technique Has Been Anmentioning

confidence: 99%

Magnetocaloric properties of cluster glass compound Pr2Ni0.95Si2.95

2019

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In this work, we report the magnetocaloric properties of a hexagonal intermetallic compound Pr 2 Ni 0.95 Si 2.95 that exhibits spin cluster glass behaviour below 3.3 K. At lower temperature, the compound undergoes magnetic field induced metamagnetic transition beyond 5 kOe applied field value as inferred from the temperature dependence of magnetization at various fields as well as isothermal magnetization measurements. The temperature dependence of magnetic entropy (−∆S M ) change has been calculated from the magnetization data and the maximum value is found to be 7.9 J/kg-K for a magnetic field change of 70 kOe. Interestingly, although the compound does not undergo any long range magnetic ordering, it exhibits considerable magnetocaloric effect in a temperature region much above the spin freezing due to the presence of short range magnetic correlation that persists up to much higher temperature. The suppression of short range interaction with the application of magnetic field has been argued to be responsible for such magnetic entropy change and adiabatic temperature change over a large temperature scale.

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“…36 and 37) and GdCo 2 B 2 which undergoes a maximum change of 21.5 J kg −1 K −1 at 25 K for a field change of 7-0 T, 38 while entropy changes of between 15 and 20 J kg −1 K −1 at ∼20 K have been observed for similarly large field changes in other materials. 39–42 Several classes of materials such as various high entropy transition metal alloys and intermetallic RECo 12 B 6 (where RE = Ce, Pr, Nd) materials have also achieved more modest magnetic entropy changes at temperatures ranging from 210 to 420 K (ref. 43 and 44) and 50–200 K (ref.…”

Section: Introductionmentioning

confidence: 99%

Dy(OH)₃: a paramagnetic magnetocaloric material for hydrogen liquefaction

Doheny,

Chen,

Gruner

et al. 2023

J. Mater. Chem. A

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Magnetic and magnetocaloric properties of Gd1-xYx

Abstract: Magnetic and magnetocaloric properties of (Gd1-xYx)(2)NiSi3 compounds (x=0.25, 0.5, 0.75

Cited by 9 publications

References 45 publications

NaGdS₂: A Promising Sulfide for Cryogenic Magnetic Cooling

NaGdS₂: A Promising Sulfide for Cryogenic Magnetic Cooling

Magnetocaloric properties of cluster glass compound Pr2Ni0.95Si2.95

Dy(OH)₃: a paramagnetic magnetocaloric material for hydrogen liquefaction

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Magnetic and magnetocaloric properties of Gd1-xYx

Abstract: Magnetic and magnetocaloric properties of (Gd1-xYx)(2)NiSi3 compounds (x=0.25, 0.5, 0.75

Cited by 9 publications

References 45 publications

NaGdS2: A Promising Sulfide for Cryogenic Magnetic Cooling

NaGdS2: A Promising Sulfide for Cryogenic Magnetic Cooling

Magnetocaloric properties of cluster glass compound Pr2Ni0.95Si2.95

Dy(OH)3: a paramagnetic magnetocaloric material for hydrogen liquefaction

Contact Info

Product

Resources

About

NaGdS₂: A Promising Sulfide for Cryogenic Magnetic Cooling

NaGdS₂: A Promising Sulfide for Cryogenic Magnetic Cooling

Dy(OH)₃: a paramagnetic magnetocaloric material for hydrogen liquefaction