About the possible observation and magnetic characterization of amorphous Ni

• Published in: Journal of magnetism and magnetic materials Vol. 188; no. 1; pp. 153 - 160
• Main Authors: Riveiro, J.M., Muñiz, P., Andres, J.P., Lopez de la Torre, M.A.
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 01.09.1998; Elsevier Science
• Subjects: Amorphous and nanocrystalline magnetic materials; quasicrystals; Amorphous and quasicrystalline magnetic materials; Amorphous systems – metal; Applied sciences; Condensed matter: electronic structure, electrical, magnetic, and optical properties; Cross-disciplinary physics: materials science; rheology; Exact sciences and technology; Growth from solid phases (including multiphase diffusion and recrystallization); Magnetic characterization; Magnetic properties and materials; Materials science; Metals. Metallurgy; Methods of crystal growth; physics of crystal growth; Physics; Studies of specific magnetic materials; 61.46.+w; Magnetic characterization; 75.50.Kj; 61.43.Dq; Amorphous systems – metal; Nickel base alloys; Phase transformations; Crystallization; XRD; Amorphous state; Experimental study; Boron alloys; Binary alloys; Metallic glasses; DSC; Growth mechanism; Nickel; Transition element alloys; Structural analysis; Magnetic properties
• ISSN: 0304-8853
• DOI: 10.1016/S0304-8853(98)00150-4

Recently Rojo et al. (Phys. Rev. Lett. 76 (1996) 4833; Phys. Rev. B 56 (1997) 5039) have reported the observation and magnetic characterization of Ni in amorphous state, as an intermediate phase that is produced during the crystallization process of the Ni 80B 20 metallic glass. In the present work we have reproduced the main experiments which gave rise to this observation, as well as carried out new ones. Our results are in contradiction with those obtained by Rojo et al. and raise doubts as to whether they observed amorphous Ni in their experiments and, of course, their magnetic characterization.