XRD patterns of the as-spun ribbons prepared at the wheel speeds ranging from .
Temperature dependence of magnetization of the specimens melt spun at in the magnetic field of . The insert is the curves.
(a) Isothermal magnetization of the specimen prepared at . (b) Magnetic entropy change of the specimens prepared at 10, 20, 30, and under the magnetic change of .
TEM images of the ribbons prepared at the wheel speeds of (a) , (b) , (c) , and (d) , respectively.
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