Anomalous magnetic hysteresis in an amorphous Nd5 4Co36B10 alloy

G. C. Hadjipanayis, S. H. Aly, D. J. Sellmyer

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The hysteresis and crystallization behavior of an amorphous Nd 54Co36B10 alloy have been examined over a range of temperatures. Crystallization studies show a glass transition temperature around 210 °C, two crystallization peaks at around 220 and 360 °C, and two endothermic peaks at around 530 and 600 °C, respectively. ac susceptibility measurements show an ordering temperature of 38 K for the amorphous phase. Four additional magnetic phases have been observed in the crystallized samples with ordering temperatures 17, 45, 90, and 190 K, respectively. Magnetic measurements on melt-spun ribbons reveal a coercivity of 6 kOe at 4.2 K. The coercivity at 4.2 K of a sample heat treated at the first crystallization temperature is increased to 8 kOe but is reduced gradually upon annealing at higher temperatures and is only 2.5 kOe in a sample annealed at a temperature close to the second endothermic peak.

Original languageEnglish (US)
Pages (from-to)4133-4135
Number of pages3
JournalJournal of Applied Physics
Volume57
Issue number8
DOIs
StatePublished - Dec 1 1985

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hysteresis
crystallization
coercivity
temperature
glass transition temperature
ribbons
magnetic measurement
magnetic permeability
heat
annealing

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Anomalous magnetic hysteresis in an amorphous Nd5 4Co36B10 alloy. / Hadjipanayis, G. C.; Aly, S. H.; Sellmyer, D. J.

In: Journal of Applied Physics, Vol. 57, No. 8, 01.12.1985, p. 4133-4135.

Research output: Contribution to journalArticle

Hadjipanayis, G. C. ; Aly, S. H. ; Sellmyer, D. J. / Anomalous magnetic hysteresis in an amorphous Nd5 4Co36B10 alloy. In: Journal of Applied Physics. 1985 ; Vol. 57, No. 8. pp. 4133-4135.
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