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Comparison of the crystallographic and magnetic properties between Tb2Fe16.46Cr1.23 and Tb3(Fe,Cr)29 single crystals

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Abstract

A novel Tb3(Fe,Cr)29 single crystal, which has a monoclinic Nd3(Fe,Ti)29-type structure, is obtained using the Czochralski method by performing a proper heat treatment on the Tb2Fe16.46Cr1.23 crystal with a Th2Ni17-type structure. Thermomagnetic curves along the easy axis and magnetization curves along the easy and hard axes are presented for both crystals. The lattice parameters are a = 1.058 nm, b = 0.848 nm, c = 0.968 nm, α = γ = 90°, and β = 96.93° for the Tb3(Fe,Cr)29 single crystal. The Curie temperatures, saturation magnetizations, and magnetocrystalline anisotropy constants are compared between the Tb-2:17 and Tb-3:29 crystals. The magnetization behavior along the hard axis is quite different as a first-order magnetization process (FOMP) of type I for the Tb-2:17, but a FOMP of type II for the Tb-3:29 crystal is observed below room temperature. At low temperatures, magnetohistory effects are detected for both crystals.

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Authors and Affiliations

  1. Department of Material Science and Engineering, Tsinghua University, Beijing, 100084, People’s Republic of China

    C. P. Yang

  2. State Key Laboratory for Magnetism, Institute of Physics and Center of Condensed Matter Physics, Chinese Academy of Sciences, Beijing, 100080, People’s Republic of China

    C. P. Yang, Y. Z. Wang, G. H. Wu & X. F. Han

  3. San Huan Research Laboratory, Chinese Academy of Sciences, P. O. Box 603, Beijing, 100080, People’s Republic of China

    Y. Z. Wang & B. P. Hu

  4. Department of Material Science and Engineering, Tsinghua University, Beijing, 100084, People’s Republic of China

    Z. L. Jiang, C. L. Ma & J. Zhu

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  1. C. P. Yang
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  2. Y. Z. Wang
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  3. G. H. Wu
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  4. B. P. Hu
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Correspondence to C. P. Yang.

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Yang, C.P., Wang, Y.Z., Wu, G.H. et al. Comparison of the crystallographic and magnetic properties between Tb2Fe16.46Cr1.23 and Tb3(Fe,Cr)29 single crystals. Journal of Materials Research 14, 4195–4199 (1999). https://doi.org/10.1557/JMR.1999.0568

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  • DOI: https://doi.org/10.1557/JMR.1999.0568

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