The calculation of magnetic and magnetooptical properties in PrF₃

【摘要】 <正> The effects of the L-S interaction and the crystal field on both the 4f and 5d levels of Pr3+ ion in the paramagnetic material PrF3 have been considered, and further the splitting of the crystal-field ground levels caused by the effective superexchange field Hv and the applied field He have also been taken account of. By using the model of double transition with the splitting of the ground state, the magnetic susceptibility x, specific Faraday rotation θF, Verdet constant V, and their temperature dependence in PrF3 have been calculated. The calculations show that the magnetooptical effect and its temperature dependence in PrF3 are closely related to the superexchange interaction between Pr3+ ions. V-1 and x-1 are linearly dependent on T in the temperature range of 110K≤T≤300K and independent of T in the low-temperature regime. The theory is in agreement with the experimental results.更多还原

【Abstract】 The effects of the L-S interaction and the crystal field on both the 4f and 5d levels of Pr3+ ion in the paramagnetic material PrF3 have been considered, and further the splitting of the crystal-field ground levels caused by the effective superexchange field Hv and the applied field He have also been taken account of. By using the model of double transition with the splitting of the ground state, the magnetic susceptibility x, specific Faraday rotation θF, Verdet constant V, and their temperature dependence in PrF3 have been calculated. The calculations show that the magnetooptical effect and its temperature dependence in PrF3 are closely related to the superexchange interaction between Pr3+ ions. V-1 and x-1 are linearly dependent on T in the temperature range of 110K≤T≤300K and independent of T in the low-temperature regime. The theory is in agreement with the experimental results.更多还原