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Structural and Magnetic Properties of the New Type of Rare Earth-Iron-Nitrogen Intermetallic Compounds 被引量:3

Structural and Magnetic Properties of the New Type of Rare Earth-Iron-Nitrogen Intermetallic Compounds
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摘要 We succeed in inserting a number of nitrogen atoms into the R_2Fe_(17)and RTiFe_(11)intermetallic compounds.The nitrides retain original Th_2Zn_(17)(or Th_2Ni_(17_)and ThMn_(12)structures,but with an increase in the unit cell volume.The interstitial nitrogen atoms are found to have an effect of increasing the Curie tempera- ture and saturation magnetization.Moreover,a distinct effect on the magnetocrystalline anisotropy is also ob- served in these nitride compounds.Especially,NdTiFe_(11)N_(0.5)and SmTiFe_(11)N_2 have excellent intrinsic magnetic properties favourable for permanent magnet applications. We succeed in inserting a number of nitrogen atoms into the R_2Fe_(17)and RTiFe_(11)intermetallic compounds.The nitrides retain original Th_2Zn_(17)(or Th_2Ni_(17_)and ThMn_(12)structures,but with an increase in the unit cell volume.The interstitial nitrogen atoms are found to have an effect of increasing the Curie tempera- ture and saturation magnetization.Moreover,a distinct effect on the magnetocrystalline anisotropy is also ob- served in these nitride compounds.Especially,NdTiFe_(11)N_(0.5)and SmTiFe_(11)N_2 have excellent intrinsic magnetic properties favourable for permanent magnet applications.
机构地区 Department of Physics
出处 《Journal of Rare Earths》 SCIE EI CAS CSCD 1991年第2期81-84,共4页 稀土学报(英文版)
关键词 Nitrides Curie temperature Saturation Magnetization Magnetocrystalline anisotropy Nitrides Curie temperature Saturation Magnetization Magnetocrystalline anisotropy
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