摘要
考虑到Mn^(2+)在钇铝榴石Y_3Al_5Si_3O_(12)(YA1G)中占据三种不同的晶位,本文推导出D_(2d)、D_(3d)和D_2低对称晶场下3d^5离子零场分裂常数D值和E值的四阶微扰公式。我们把该公式应用于YA1G:Mn^(2+)的D值和E值的计算,结果与实验值较为接近。
Considering the occupation of three different crystallographic sites by Mn^(2+) in yttrium-aluminium garnet (YAIG), in this paper we have derived the formulae of four-order perturbation for the zero-fleld splitting parameters D and E for 3 d^5 configuration in the low-symmetry crystal field (D_(2d), D_(3d) and D_2). With these formulae, parameters D and E of YAIG: Mn^(2+) were worked out. The calculated values are consistent with the experimental results.
出处
《矿物学报》
CAS
CSCD
北大核心
1990年第2期161-166,共6页
Acta Mineralogica Sinica
关键词
电子顺磁共振
晶体场理论
钇铝榴石
electron magnetic resonance
crystal-field theory
yttrium-aluminium garnet(YAIG)
