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Magnetic properties of melt-spun and as-cast SmCo5−xNix alloys (1987)

Mikhov, M. T. ; Gong, W. ; Hadjipanayis, G. C.

[S.l.] : American Institute of Physics (AIP)

Journal of Applied Physics 61 (1987), S. 3460-3462

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ISSN: 1089-7550

Source: AIP Digital Archive

Topics: Physics

Notes: The magnetic properties of as-cast, ribbon, and powder samples of SmCo5−xNix compounds, where x=1, 2, and 3, have been studied at temperatures between 4.2 and 900 K and in magnetic fields up to 75 kOe. Some new evidences for exchange and anisotropy fluctuations are given. Substantially higher coercivities are observed in ribbons and powders reaching the value of Hc=30 kOe for SmCo4Ni and Hc=51 kOe for SmCo3Ni2 at 4.2 K. The corresponding values for as-cast samples are found to be 7 and 18 kOe, respectively. Hysteresis loop measurements show that along with homogeneous domain wall pinning a "size-effect'' mechanism contributes to the coercivity of ribbon and powder samples.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1063/1.338753

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