Magnetic, magnetocaloric effect and resistivity behavior of Sb substituted MnAs

The magnetocaloric effect properties for potential applications of magnetic refrigerator technology: a review

“…It is worth noting that if the measured material exhibits hysteresis, steps are required to eliminate losses due to hysteresis to obtain a clean RC value. 1,35…”

“…However, FOMT exhibits significant magnetic and thermal hysteresis, leading to losses in the performance of the MCE properties and a very narrow operating temperature range. 52,54 Examples of materials that exhibit FOMT include La(Fe,Si) 13 , 58 Gd 5 Si 2 Ge 2 , 59 MnAs 1− x Sb x , 35 Ni 65 Mn 20 Ga 15 , 28 and (Fe 0.98 Ni 0.02 ) 51 Rh 49 alloys. 34 On the other hand, if the first derivative presents a continuous curve marked by a magnetic phase transition at critical points with a broad temperature range, this behavior is known as a second-order magnetic phase transition.…”

“…All samples exhibited a ferromagnetic to paramagnetic phase transition with a decrease in T C from 300.5 to 242 K as the concentration x increased. 35…”

“…1(B). To date, innovative types of materials include Heusler alloys, 28,29 LaFe 13Àx Si x alloys, [30][31][32][33] Fe-based alloys, 34 MnAs, 35 spinnel ferrites, [36][37][38] perovskite magnanites, 9,[15][16][17]27,[39][40][41] double perovskites, 19 and composite. [42][43][44] This was aimed at obtaining MCE materials with ideal criteria for magnetic refrigeration applications.…”

“…It is worth noting that if the measured material exhibits hysteresis, steps are required to eliminate losses due to hysteresis to obtain a clean RC value. 1,35 2.4 Relation between magnetic behavior and types of magnetic phase transition…”