The XRD patterns of the as-quenched Gd65− x Tb x Fe20Al15 (x = 0–20) ribbons.
TEM image of Gd45Er20Fe20Al15 ribbon. The inset is the TEM image of Gd65Fe20Al15.
(a) The dependence of TC of the Gd65− x RE x Al15Fe20 (x = 0–20; RE = Tb, Dy, Ho, and Er) ribbons on the contents of the heavy rare-earth elements; (b) of these Gd65− x RE x Al15Fe20 ribbons under 10 kOe.
Magnetic entropy changes of the Gd65Fe20Al15 and Gd45RE20Fe20Al15 (RE=Tb, Dy, Ho, and Er) ribbons at the magnetic field changes of 0–50 kOe.
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