CALCULATION OF THE DIRECT PROCESS OF SPIN-LATTICE RELAXATION IN RUBY
HUANG WU-HAN, LIN FU-CHENG, LAU CHIE-HUNG
摘要 本文计算了在低温、低浓度下红宝石基态自旋-晶格弛豫的直接过程。应用强场耦合表象中基态的二级微扰波函数,在θ=90°,脉冲饱和法测量条件下,计算了基态四能级之间的无辐射跃迁几率。然后,用求解粒子数方程的方法,计算1.4°K的自旋-晶格弛豫时间。计算结果与Pace等人的实验结果较好地符合。 Abstract The direct process of spin-lattice relaxation in the ground state of ruby of low concentration is calculated at low temperature. The nonradiative transition probabilities within the four ground sub-levels are calculated by aid of second-order wave functions obtained in the strong-field coupling scheme. Under the measured condition of impulse saturation at θ=90°, the spin-lattice relaxation time at 1.4°K is obtained by solving the rate equations. The calculated result conforms satisfactorily to the experimental data given by Pace et al. 作者及机构信息 黄武汉, 林福成, 楼祺洪 1. 中国科学院 Authors and contacts HUANG WU-HAN, LIN FU-CHENG, LAU CHIE-HUNG 1. 中国科学院 参考文献 [1] 施引文献
Acta Physica Sinica•Jan 1, 1965•0 citations