Magnetic properties and magnetic domain structures of NdFe10.5Mo1.5 and NdFe10.5Mo1.5Nx

Jinbo Yang, Weihua Mao, Benpei Cheng, Yingchang Yang, Hai Xu, Baoshan Han, Senlin Ge, Wanjun Ku

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Abstract

We succeed in preparing anisotropic magnetic powders with high performance based on the NdFe10.5Mo1.5Nx nitrides. The properties of these materials are favorable for permanent magnet application. The domain structures of the NdFe10.5Mo1.5 and NdFe10.5Mo1.5Nx were studied by using magnetic force microscopy. Upon nitrogenation, a domain structure transition from complex maze to simple stripe was found. This transition is due to the strongly uniaxial magnetocrystalline anisotropy induced by interstitial nitrogen atoms. Together with magnetic measurements, we have calculated the domain wall energy γ, exchange constant A, domain wall thickness δ, and critical single-domain particle size Dc of NdFe10.5Mo1.5 and NdFe10.5Mo1.5Nx.

Original languageEnglish (US)
Pages (from-to)3290-3292
Number of pages3
JournalApplied Physics Letters
Volume71
Issue number22
DOIs
StatePublished - Dec 1 1997

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ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Yang, J., Mao, W., Cheng, B., Yang, Y., Xu, H., Han, B., Ge, S., & Ku, W. (1997). Magnetic properties and magnetic domain structures of NdFe10.5Mo1.5 and NdFe10.5Mo1.5Nx. Applied Physics Letters, 71(22), 3290-3292. https://doi.org/10.1063/1.120315