Structural and magnetic properties of yttrium-substituted La 0.6-xYxSr0.4MnO3(x=0–0.3)

In situ annealing achieves an ultrafast synthesis of high coercive strontium ferrite foams and beyond

“…In addition, the co-substitution of Y 3+ and Al 3+ results in a crystal structure distortion, which increases the magnetocrystalline anisotropy, leading to increased coercivity. 20,54 In order to study the effects of in situ annealing time on the structure and magnetic properties of strontium ferrite foams, we prepared a series of foams with in situ annealing time for 10 s, 20 s, 40 s, 1 min, and 5 min. XRD patterns revealed the structural evolution of intermediate spinel (γ-Fe 2 O 3 ) to final magnetoplumbite (Sr 0.94 Y 0.06 Fe 7 Al 5 O 19 ) of strontium ferrite foams (Fig.…”

“…In addition, the co-substitution of Y 3+ and Al 3+ results in a crystal structure distortion, which increases the magnetocrystalline anisotropy, leading to increased coercivity. 20,54…”

Strong Role of Calcination Temperature for Improving Magnetocaloric Effect in Nd0.5Sr0.5MnO3 Prepared via Combustion Technique

“…With rapid steps, increased refrigeration efficiency, reduction in weight, greater mechanical stability, lower environmental impact, greater efficiency, lower noise levels and high cost-effectiveness, magnetocaloric refrigerator (MR) has developed into a strong alternative to gas refrigeration by magnetocaloric effect (MCE) [1][2][3][4][5][6]. In space applications, medical appliances, aerospace applications and food cooling, MR is a fundamental requirement [7][8][9][10][11][12][13][14].…”