摘要
Ｃｒ３＋和Ｖ２＋离子分别掺进晶体ＭｇＯ时，将引起局域结构产生四角畸变，本文研究了掺杂晶体ＭｇＯ：Ｖ２＋和ＭｇＯ：Ｃｒ３＋的ＥＰＲ零场分裂Ｄ，理论计算和实验观察基本一致；并指出。
When impurities Cr 3+ or V 2+ substitute Mg 2+ ions in cubic MgO crystals, tetragonal distortion of the local structure takes place. Based on this, the zero field splitting parameter D of the MgO:V 2+ and MgO:Cr 3+ crystals are reasonably explained. The calculated results are in good agreement with the experimental values. The investigation shows that the tetragonal distortion for MgO:V 2+ is smaller than for MgO:Cr 3+ .
出处
《四川师范大学学报（自然科学版）》
CAS
CSCD
1996年第5期91-95,共5页
Journal of Sichuan Normal University（Natural Science）
基金
国家自然科学基金
四川省教委重点科研资助
关键词
四角畸变
零场分裂
氧化镁
钒
铬
晶体
Cryctal field theory, MgO:V 2+ 、Cr 3+ , Tetragonal distortion, Zero field splitting
