【摘要】 DyFe₁₀Si₂合金的⁵⁷Fe变温Mssbauer谱学研究,发现温度在210K处,超精细场随温度有不连续变化。此温度对应于合金的自旋重取向温度。Si,Ti和V作为形成ThMn₁₂型结构的稳定化元素,造成各相应合金的自旋重取向温度有一些差别。分析了Si,Ti和V元素造成合金磁晶各向异性差别的原因,它使得DyFe₁₀V₂,DyFe₁₁Ti和DyFe₁₀Si₂合金的自旋重取向温度不同。DyFe₁₀Si₂合金的8i晶位四极劈裂在温度210K处改变符号。更多还原

【Abstract】 Spin reorientation temperature of DyFe₁₀Si₂ alloys from plane at low temperature to c-axis at high temperature are observed at 210 K by means of Mossbauer spectroscopy. The Si, Ti and V elements to from the stable ThMn₁₂ phase can affect the spin reorientation temperature. The differences of magnetic anisotropy of YFe₁₀V₂, YFe₁₁Ti and YFe₁₀Si₂ have been discussed here, The quadraple splitting of 8i crystal site changes sign at 210 K.更多还原