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Springer (part of Springer Nature), Applied Physics A: Materials Science and Processing, 3(116), p. 1403-1407

DOI: 10.1007/s00339-014-8245-2

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Impact of amorphization on the magnetic state and magnetocaloric properties of Gd3Ni

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This paper is available in a repository.

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Abstract

Rapid quenching and ball milling have been used to modify the magnetic state and magnetocaloric properties of the intermetallic compound Gd3Ni. The melt-spun and ball-milled Gd3Ni samples are found to exhibit a soft ferromagnetic-like behavior below 120 K, whereas in the crystalline state, the Gd3Ni compound is an antiferromagnet with a Néel temperature of about 99 K. The reduced value of the saturation magnetization observed in amorphous Gd3Ni samples is ascribed to the appearance of a magnetic moment on Ni atoms. After amorphization, the Gd3Ni samples exhibit substantially improved magnetocaloric properties in a low field region in comparison with crystalline Gd3Ni.