(Color online) XRD patterns of MnBi ribbons melt-spun at 10 and 65 ms−1. Up: ribbon surface far away from the copper wheel; Down: ribbon surface near the copper wheel.
(a) SEM image of as-quenched MnBi ribbons melt-spun at 65 ms−1, (b) TEM image of annealed ribbons melt-spun at 65 ms−1.
(Color online) XRD patterns of MnxBi100-x (50 ≤ x ≤ 70) annealed at 573 K after melt-spun at 65 ms−1.
(Color online) Room temperature XRD of MnBi fitted by Rietveld refinement.
(a) Grinding time dependence of Hc and Mr/Ms for the annealed MnBi ribbons, (b) Hysteresis loops of anisotropic MnBi powders grinded for 7 h.
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