Effect of Sb substitution on crystal structure, texture and hard magnetic properties of melt-spun MnBi alloys

Study of the Effect of Thickness on the Optical Properties of MnBi0.95Sb0.05 Thin Film

“…The highest peak of (0 0 2) Mn-Bi-Sb phase with a hexagonal Ni-as-type structure is detected in the MnBi0.95Sb0.05 film, presenting that some Mn-Bi-Sb nanocrystals are oriented using the c-axis perpendicular to the film surface [7]. Therefore, the crystal structure of the ternary phase can be described with the formation of Mn-Bi-Sb as a p63/mmc hexagonal group, which was subsequently confirmed by Gabay et al [8]. As the second phase Mn2Sb associated with the tetragonal P4/n mm (129) [9] and the allied hexagonal bismuth phase R-3m (166) [8][9][10].…”

“…Therefore, the crystal structure of the ternary phase can be described with the formation of Mn-Bi-Sb as a p63/mmc hexagonal group, which was subsequently confirmed by Gabay et al [8]. As the second phase Mn2Sb associated with the tetragonal P4/n mm (129) [9] and the allied hexagonal bismuth phase R-3m (166) [8][9][10]. Fig.…”

Synergistic computational and experimental discovery of novel magnetic materials

“…Since Sn has one fewer valence electrons than Bi, this leads to a slight reduction in magnetization. Following theoretical predictions, 90 there were significant experimental studies on alloying MnBi with Sn, Sb, and Mg. [91][92][93][94] As predicted by DFT calculations, an easy-axis aligned melt-spun Mn 50 Bi 45 Sn 5 alloy has shown significantly improved room-temperature anisotropy constant (20 Mergs/cm 3 ) as compared to that of an aligned MnBi sample (12 Mergs/cm 3 ). 91,94 This improvement was also reflected in the experimentally measured coercivities in the MnBi-based alloys (Fig.…”

Effects of Mg and Sb Substitution on the Magnetic Properties of Magnetic Field Annealed MnBi Alloys

“…Secondary elements such as Sn, Sb, Mg, and In have been substituted/doped to enhance the effectiveness of field annealing for MnBi permanent magnetic materials [ 23 , 24 , 25 , 26 , 27 ]. The magnetic properties of the secondary element-doped/substituted MnBi are superior to those of MnBi fabricated using a field annealing process, revealing higher magnetization, H c , and squareness ( M r / M s ) than those of binary MnBi [ 23 , 24 , 25 , 26 , 27 ]. Therefore, the highest ( BH ) max (12 MGOe) was achieved for Mn 50 Bi 46 Mg 3 In 0.5 Sb 0.5 bulk magnetic material [ 27 ].…”

“…However, the process is not efficient for all permanent magnets owing to variations in the field dependence of the magnetic phase crystallization. Secondary elements such as Sn, Sb, Mg, and In have been substituted/doped to enhance the effectiveness of field annealing for MnBi permanent magnetic materials [23][24][25][26][27]. The magnetic properties of the secondary element-doped/substituted MnBi are superior to those of MnBi fabricated using a field annealing process, revealing higher magnetization, H c , and squareness (M r /M s ) than those of binary MnBi [23][24][25][26][27].…”