Magnetic properties and hyperfine interactions of amorphous Fe-Hf alloys

S. H. Liou, G. Xiao, J. N. Taylor, C. L. Chien

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

Alloys of FexHf100-x (20≤x≤100) were fabricated by a vapor-quench method. The amorphous state, as verified by x-ray diffraction, is realized over a wide composition range of 20≤x≤94. The magnetic phase diagram was determined. The variation with Fe content of the magnetic ordering temperature (Tc) in Fe-Hf amorphous alloys shows a maximum at xp≅87. In contrast, the effective magnetic hyperfine field and therefore the Fe moment increases monotonically with x. Amorphous pure Fe is likely to be magnetic (Tc ∼200 K) with a large magnetic moment. At higher Fe concentrations (x>95), the samples are crystalline alloys and strongly ferromagnetic. These sharp changes of the magnetic properties are consequences of structural differences, a fact which has been observed in every Fe-early transition metal alloy system reported thus far. In general, the magnetic properties and hyperfine interactions of amorphous Fe-Hf alloys are very similar to those of amorphous Fe-Zr alloys.

Original languageEnglish (US)
Pages (from-to)3536-3538
Number of pages3
JournalJournal of Applied Physics
Volume57
Issue number8
DOIs
StatePublished - Dec 1 1985

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magnetic properties
interactions
x ray diffraction
magnetic moments
transition metals
phase diagrams
vapors
moments
temperature

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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Magnetic properties and hyperfine interactions of amorphous Fe-Hf alloys. / Liou, S. H.; Xiao, G.; Taylor, J. N.; Chien, C. L.

In: Journal of Applied Physics, Vol. 57, No. 8, 01.12.1985, p. 3536-3538.

Research output: Contribution to journalArticle

Liou, S. H. ; Xiao, G. ; Taylor, J. N. ; Chien, C. L. / Magnetic properties and hyperfine interactions of amorphous Fe-Hf alloys. In: Journal of Applied Physics. 1985 ; Vol. 57, No. 8. pp. 3536-3538.
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