Magnetic Anisotropy of Helical and Collinear Magnets R2Fe17-XMnx

Anatoly G. Kuchin

doi:10.4028/www.scientific.net/SSP.168-169.192

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HomeSolid State PhenomenaSolid State Phenomena Vols. 168-169Magnetic Anisotropy of Helical and Collinear...

Magnetic Anisotropy of Helical and Collinear Magnets R₂Fe_17-XMn_x

Abstract:

Magnetic anisotropy of the easy-plane type in the R2Fe17-хMnx systems with R = Ce and Lu weakens upon substitution of Mn for Fe. Temperature dependence of the first magnetic anisotropy constant (K1) of the R2Fe17-xMnx systems is described rather well in the single-ion model of magnetic anisotropy. However, in the case of the Ce2Fe17-хMnx helical ferromagnets the experimental variation of K1 is somewhat slower than that calculated by the third power of the spontaneous magnetization, in contrast to the Lu2Fe17-хMnx collinear ferromagnets, where K1 decreases slightly faster with increasing temperature as compared with this fit.

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Solid State Phenomena (Volumes 168-169)

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192-195

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https://doi.org/10.4028/www.scientific.net/SSP.168-169.192

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December 2010

Authors:

Anatoly G. Kuchin

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Magnetic Anisotropy, Magnetic Measurement, Rare Earth-Iron Compounds

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