Giant and reversible low field magnetocaloric effect in LiHoF4 compound

2021 ◽  
Author(s):  
Huicai Xie ◽  
Lu Tian ◽  
Qi Chen ◽  
Hao Sun ◽  
Xinqiang Gao ◽  
...  
Keyword(s):  
Magnetocaloric Effect ◽  
Industrial Production ◽  
High Efficiency ◽  
Human Life ◽  
Magnetic Refrigeration ◽  
Good Stability ◽  
Low Field ◽  
Application Potential

Cryogenic refrigeration technology is gradually penetrating into increasing aspects in human life and industrial production. Magnetic refrigeration shows excellent application potential due to its high efficiency, good stability and environmental...

Giant Magnetocaloric Effect of Tmcosi Compound Under Low Field Change

2020 ◽  
Author(s):  
Jia-Wang Xu ◽  
Xinqi Zheng ◽  
Shu-Xian Yang ◽  
L. Xi ◽  
J. Y. Zhang ◽  
...  
Keyword(s):  
Magnetocaloric Effect ◽  
Field Change ◽  
Low Field ◽  
Giant Magnetocaloric Effect

Large magnetic entropy change at cryogenic temperature in rare earth HoN nanoparticles

RSC Advances ◽  
2016 ◽  
Vol 6 (79) ◽  
pp. 75562-75569 ◽  
Author(s):  
K. P. Shinde ◽  
S. H. Jang ◽  
M. Ranot ◽  
B. B. Sinha ◽  
J. W. Kim ◽  
...  
Keyword(s):  
Rare Earth ◽  
Low Temperature ◽  
Magnetocaloric Effect ◽  
Cryogenic Temperature ◽  
Magnetic Entropy Change ◽  
Entropy Change ◽  
Environmental Problems ◽  
Magnetic Refrigeration ◽  
Magnetic Entropy ◽  
Alternative Technology

The most extensive cooling techniques based on gases have faced environmental problems. The magnetic refrigeration is an alternative technology based on magnetocaloric effect. HoN nanoparticles are good refrigerant material at low temperature.

Large low-field magnetocaloric effect in directionally solidified Ni 55 Mn 18+x Ga 27−x (x = 0, 1, 2) alloys

2018 ◽  
Vol 445 ◽  
pp. 71-76 ◽  
Author(s):  
Zhenzhuang Li ◽  
Zongbin Li ◽  
Bo Yang ◽  
Yiqiao Yang ◽  
Yudong Zhang ◽  
...  
Keyword(s):  
Magnetocaloric Effect ◽  
Directionally Solidified ◽  
Low Field

Large magnetocaloric effect and enhanced magnetic refrigeration in ternary Gd-based bulk metallic glasses

2008 ◽  
Vol 103 (2) ◽  
pp. 023918 ◽  
Author(s):  
J. Du ◽  
Q. Zheng ◽  
Y. B. Li ◽  
Q. Zhang ◽  
D. Li ◽  
...  
Keyword(s):  
Magnetocaloric Effect ◽  
Metallic Glasses ◽  
Bulk Metallic Glasses ◽  
Magnetic Refrigeration

scholarly journals The Effect of Different Atomic Substitution at Mn Site on Magnetocaloric Effect in Ni50Mn35Co2Sn13 Alloy

Crystals ◽  
2018 ◽  
Vol 8 (8) ◽  
pp. 329 ◽  
Author(s):  
Chengfen Xing ◽  
Hu Zhang ◽  
Kewen Long ◽  
Yaning Xiao ◽  
Hanning Zhang ◽  
...  
Keyword(s):  
Magnetocaloric Effect ◽  
Parent Phase ◽  
Martensitic Transition ◽  
Martensitic Transformation Temperature ◽  
Low Field ◽  
Transition Metal Element ◽  
Magnetocaloric Properties ◽  
Metal Element ◽  
Mn Content ◽  
Atomic Substitution

The effect of different atomic substitutions at Mn sites on the magnetic and magnetocaloric properties in Ni50Mn35Co2Sn13 alloy has been studied in detail. The substitution of Ni or Co for Mn atoms might lower the Mn content at Sn sites, which would reduce the d-d hybridization between Ni 3d eg states and the 3d states of excess Mn atoms at Sn sites, thus leading to the decrease of martensitic transformation temperature TM in Ni51Mn34Co2Sn13 and Ni50Mn34Co3Sn13 alloys. On the other hand, the substitution of Sn for Mn atoms in Ni50Mn34Co2Sn14 would enhance the p-d covalent hybridization between the main group element (Sn) and the transition metal element (Mn or Ni) due to the increase of Sn content, thus also reducing the TM by stabilizing the parent phase. Due to the reduction of TM, a magnetostructural martensitic transition from FM austenite to weak-magnetic martensite is realized in Ni51Mn34Co2Sn13 and Ni50Mn34Co2Sn14, resulting in a large magnetocaloric effect around room temperature. For a low field change of 3 T, the maximum ∆SM reaches as high as 30.9 J/kg K for Ni50Mn34Co2Sn14. A linear dependence of ΔSM upon μ0H has been found in Ni50Mn34Co2Sn14, and the origin of this linear relationship has been discussed by numerical analysis of Maxwell’s relation.

Triethyl phosphate in an antisolvent: a novel approach to fabricate high-efficiency and stable perovskite solar cells under ambient air conditions

2021 ◽  
Vol 5 (20) ◽  
pp. 7628-7637
Author(s):  
Pengyun Zhang ◽  
Ningxia Gu ◽  
Xiang Chen ◽  
Lixin Song ◽  
Pingfan Du ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
Ambient Air ◽  
Good Stability ◽  
Triethyl Phosphate ◽  
Ambient Conditions ◽  
Novel Approach

In this contribution, PSCs with a high efficiency and good stability are fabricated under ambient conditions without a glove box via introducing triethyl phosphate (TEP) into a perovskite through an antisolvent.

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