Evidence for a Fe-related defect centre in diamond

被引：7

作者：

Iakoubovskii, K ^{[1
]}

Adriaenssens, GJ ^{[1
]}

机构：

[1] Katholieke Univ Leuven, Lab Halfgeleiderfys, B-3001 Louvain, Belgium

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2002年 / 14卷 / 04期

关键词：

D O I：

10.1088/0953-8984/14/4/104

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

An undocumented photoluminescence Centre at 1.789 eV has been characterized in diamonds grown by a high-pressure high-temperature technique. It could only be observed in nitrogen-free crystals grown in a Fe-containing chamber. The Centre is unique for diamond due to its room-temperature linewidth, which can be as small as I meV. Polarization, temperature and time-resolved measurements reveal that the corresponding defect has trigonal symmetry, a 3.7 meV splitting in the ground state, vibronic modes of 30 and 48 meV, very weak electron-phonon coupling and a lifetime of 7 ms at room temperature. The centre is attributed to an interstitial Fe related defect.

引用

页码：L95 / L98

页数：4

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