Magnetocaloric Properties of A-Site-Doped La2NiMnO6 for Environmentally Friendly Refrigeration

Enhanced Refrigeration Capacity of Rare-Earth-Free Ni-Co-Mn-In-Si Heusler Alloys for Magnetic Refrigerants

“…Generally, the rare-earth, especially gadolinium, based elements and alloys have been extensively studied as potential magnetic refrigerants for functional devices due to observed large MCE along with existences of magnetostructural transitions and shape memory effects. [1][2][3][4] However, low abundance and high cost of rare-earth and/or Gd-based alloys prevent their utilization in a large scale. Hence, the search for rare-earth-free MC materials is indeed a challenging task in the evolution of magnetism-driven cooling technology.…”

“…14 Further, heat-treatment driven Ni 51 Mn 34 In 14 Si 1 ribbons have shown the ΔS M of 14.1 J kg −1 K −1 and RC of 37.3 J Kg −1 . 15 Among Ni-Mn-X based alloys, [1][2][3][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24] Ni 45 Co 5 Mn 37 In 12 Si 1 Heusler alloy is known for their superior magnetic field induced transition and inverse MCE. 23,24 Particularly, the obtained maximum RC values of Ni 50 Mn 34 Co 1 In 15 , Ni 49.8 Co 1.2 Mn 33.5 In 15.5 , Ni 45 Co 5 Mn 35 In 14 Gd 1 are 229 J kg −1 , 125 J kg −1 , 255 J kg −1 , respectively under an applied magnetic field of 5 T. [20][21][22] The current study is to investigate the influence of heat-treatment on MCE of Ni 45 Co 5 Mn 37 In 12 Si 1 .…”

Enhanced Cryogenic Magnetocaloric Performance in Te Doped Dy2O3

“…Later, rare earth oxides (REO) materials have gone mainstream in magnetic, catalytic, optical, sensor, and cryogenic applications over the last few decades. [14][15][16][17][18][19][20][21][22] REO's are of high technical importance in the refrigeration domain because of their ability to experience isothermal entropy change when external stimuli such as an electric force, magnetic field, stress, or pressure are applied. [23][24][25] By switching one control parameter to another, several driving fields may produce greater thermal changes with a smaller magnetic field across a broad range of operating temperatures and remove hysteresis.…”