Investigation of magnetic properties of Fe61Co8Zr4−xY2+xNi5Nb5B15 amorphous alloys (x=0, 1) in the form of ribbons

Nabiałek, M.; Dośpiał, M.; Szota, M.; Pietrusiewicz, P.; Walters, Simon; Skowron, Daniel

doi:10.1016/j.mseb.2012.10.020

Cited by 5 publications

(1 citation statement)

References 31 publications

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“…Nonetheless, it is well known that the glass forming ability (GFA) of binary Fe-B system is too poor to develop bulk metallic glasses [2]. To improve the GFAs of FeB-based metallic glasses, much investigation has been carried out, and the main strategy is to add additional elements to form new ternary or quaternary metallic glasses [3][4][5][6][7]. It has been reported that the introduction of 4d transition metals, like Y, Zr and Nb could significantly improve the GFAs of FeB-based metallic glasses [8][9][10] by changing the local atomic structure.…”

Section: Introductionmentioning

confidence: 99%

Structural tuning for enhanced magnetic performance by Y substitution in FeB-based metallic glasses

Shan¹,

Li²,

Tan³

et al. 2020

J. Phys.: Condens. Matter

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Despite the compositional analogue to Fe71B17(NbYZr)12 metallic glass, the Fe71B17Y12 metallic glass has a saturated magnetization of Ca 108 emu g−1, more than 5 times of that in Fe71B17(NbYZr)12 (20 emu g−1). The structural origin for such significant difference in magnetic performance was investigated by x-ray absorption fine structure spectra and ab initio molecular dynamics (AIMD) simulations including simulated pair-correlation function (PCF) and Voronoi tessellation. Based on the Heisenberg model of magnetism, the narrow distribution of Fe–Fe bonds with larger distances accounts for a large Fe moment of 2.0 μ B in Fe71B17Y12, while the broad distribution of Fe–Fe bonds leads to ferrimagnetic couplings which result in the small net Fe moment of 0.45 μ B in Fe71B17(NbYZr)12. This work emphasizes how the substitution of analogous 4d transition metals induces a significantly different magnetism, which sheds lights on the development of new magnetic metallic glasses with both a promising magnetic performance and larger glass forming ability.

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