The magnetocrystalline anisotropy in YTi(Fe,Co)11 single crystals

Терешина, И. С.; Никитин, С.А.; Telegina, I. V.; Zubenko, V. V.; Pastushenkov, Yu. G.; Skokov, Konstantin P.

doi:10.1016/s0925-8388(98)00884-6

Cited by 11 publications

(5 citation statements)

References 10 publications

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“…measured in ref. 29 together with our measured Curie temperatures. At low T, the iron contribution is much smaller than the Ce one and does not affect the picture qualitatively.…”

Section: Resultsmentioning

confidence: 57%

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Intrinsically weak magnetic anisotropy of cerium in potential hard-magnetic intermetallics

et al. 2021

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Cerium-based intermetallics are currently attracting much interest as a possible alternative to existing high-performance magnets containing scarce heavy rare-earth elements. However, the intrinsic magnetic properties of Ce in these systems are poorly understood due to the difficulty of a quantitative description of the Kondo effect, a many-body phenomenon where conduction electrons screen out the Ce-4f moment. Here, we show that the Ce-4f shell in Ce–Fe intermetallics is partially Kondo screened. The Kondo scale is dramatically enhanced by nitrogen interstitials suppressing the Ce-4f contribution to the magnetic anisotropy, in striking contrast to the effect of nitrogenation in isostructural intermetallics containing other rare-earth elements. We determine the full temperature dependence of the Ce-4f single-ion anisotropy and show that even unscreened Ce-4f moments contribute little to the room-temperature intrinsic magnetic hardness. Our study thus establishes fundamental constraints on the potential of cerium-based permanent magnet intermetallics.

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“…measured in ref. 29 together with our measured Curie temperatures. At low T, the iron contribution is much smaller than the Ce one and does not affect the picture qualitatively.…”

Section: Resultsmentioning

confidence: 57%

“…As in this work, we do not aim at calculating the Fesublattice magnetic anisotropy, we extract its value and temperature dependence from measurements performed on YFe 11 Ti (ref. 29 ), using the experimental dependence K Fe 1 ðTÞ ¼ 23:3 À 28T=T c (K/f.u.) measured in ref.…”

Section: Resultsmentioning

confidence: 99%

Intrinsically weak magnetic anisotropy of cerium in potential hard-magnetic intermetallics

et al. 2021

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show abstract

“…In an earlier paper [9], we have reported the structural and magnetic properties of YFe 11−x Co x Ti compounds. All the YFe 11−x Co x TiH hydrides are found maintain the ThMn 12 -type tetragonal structure and no formation of the ␣-Fe phase is observed.…”

Section: Resultsmentioning

confidence: 99%

“…Fig. 4 shows the K 1 (x) curves for YFe 11−x Co x Ti [9] and YFe 11−x Co x TiH compounds at T = 300 K. For the initial compounds, the first anisotropy constant reaches a weak maximum value at x = 1 and then decreases with increase of the Co content. Since the Fe local anisotropy is uniaxial, whereas the Co's is planar, the change of the K 1 sign takes place within the composition range 5 < x < 6 [12].…”

Section: Resultsmentioning

confidence: 99%