DYNAMIC JAHN-TELLER DISTORTIONS AT TRIGONAL OPTICAL-CENTERS IN DIAMOND
DYNAMIC JAHN-TELLER DISTORTIONS AT TRIGONAL OPTICAL-CENTERS IN DIAMOND
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DOI：
10.1088/0022-3719/12/13/019
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发表时间：
1979-01-01
期刊：
影响因子：
--
通讯作者：
DAVIES, G
中科院分区：
文献类型：
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作者：
DAVIES, G
本文报道了金刚石中两种常见辐射损伤中心的单轴应力测量结果。它们的零声子谱线在17380和23530 cm-1处是三角中心（C3，C3 v of D3 d）的E（基态）和A1或A2（激发态）之间的电偶极跃迁。其他非简并态被发现约100 cm-1以上的地面水平。这些数据是一致的动态Jahn-Teller扭曲发生在基态的中心。在汇集所有已知的简并电子状态在三角形中心的金刚石，两个简单的概括出现在这些中心的Jahn-Teller效应的发生。
Uniaxial stress measurements are reported on two commonly occurring radiation damage centres in diamond. Their zero-phonon lines, at 17380 and 23530 cm-1; are shown to be electric-dipole transitions between E (ground) and A 1, or A 2,(excited) states at trigonal centres (C 3, C 3v of D 3d). Other non-degenerate states are found approximately 100 cm-1 above the ground level. The data are consistent with dynamic Jahn-Teller distortions occurring in the ground states of the centres. On bringing together information on all the known degenerate electronic states at trigonal centres in diamond, two simple generalisations emerge for the occurrence of Jahn-Teller effects at these centres.