钒刚玉光学和磁学性质的理论研究(英文)

Theoretical Examination of Optical and Magnetic Behaviours of Vanadium Corundum

根据完全对角化方法和一种类晶体场模型 ,统一地解释了α- Al_2 O_3:V^(3+) 的光谱、电子顺磁共振g因子和零场分裂D值 .理论计算值与实验符合得很好 .此外 ,导出的V^(3+) 位置的位移量 0 .0 0 86nm与浓缩红宝石中Cr3+ 位置的位移量 0 .0 0 6nm相接近 .

In this work, the optical spectrum, electron paramagnetic resonance g-factors and zero-field splitting D-value of α-Al 2O 3:V 3+ are interpreted simultaneously based on the complete diagonalization procedure and a crystal-field-like model. The theoretical values are in good agreement with experimental findings. In addition, the deduced displacement of 0.008 6 nm of V 3+ site is comparable to the value of 0.006 nm of Cr 3+ site in the concentrated ruby.