At room temperature,the c-axis is the easy magnetization direction tn DyTiFen compound.However,when we decrease temperature,the thermal magnetic curves show that a spin reorientation takes place at about 175K.The anis...At room temperature,the c-axis is the easy magnetization direction tn DyTiFen compound.However,when we decrease temperature,the thermal magnetic curves show that a spin reorientation takes place at about 175K.The anisotropy constants of Ft sublattice have been determined by measuring the magnetocrystalline anisotropy of YTiFen,We have calculated the anisotropy constants of Dy by using single ion theory.The results demonstrate that the spin reorientation arises from the competition of magnetocrystalline anisotropy between Dy and Fe sublattices.The spin reorientation is explaned by the theo retical calculation.展开更多
The magnetocrystalline anisotropy of SmTiFe_(11) Aas 6een studied.In addition to experimental investigations,the contribution of Sm^(3+) ion to the magnetocrystalline anisotropy of SmTiFe^(11) has been calculated usin...The magnetocrystalline anisotropy of SmTiFe_(11) Aas 6een studied.In addition to experimental investigations,the contribution of Sm^(3+) ion to the magnetocrystalline anisotropy of SmTiFe^(11) has been calculated using the single ion theory.The effect of the first excited state of Sm^(3+) has been taken into consideration in the calculations,and the calculated results are consistent with the experimental data.展开更多
文摘At room temperature,the c-axis is the easy magnetization direction tn DyTiFen compound.However,when we decrease temperature,the thermal magnetic curves show that a spin reorientation takes place at about 175K.The anisotropy constants of Ft sublattice have been determined by measuring the magnetocrystalline anisotropy of YTiFen,We have calculated the anisotropy constants of Dy by using single ion theory.The results demonstrate that the spin reorientation arises from the competition of magnetocrystalline anisotropy between Dy and Fe sublattices.The spin reorientation is explaned by the theo retical calculation.
基金Project supported by the National Science Foundation of China。
文摘The magnetocrystalline anisotropy of SmTiFe_(11) Aas 6een studied.In addition to experimental investigations,the contribution of Sm^(3+) ion to the magnetocrystalline anisotropy of SmTiFe^(11) has been calculated using the single ion theory.The effect of the first excited state of Sm^(3+) has been taken into consideration in the calculations,and the calculated results are consistent with the experimental data.
