OPTICAL-DETECTION OF MAGNETIC-RESONANCE IN THE PHOTOEXCITED TRIPLET-STATE OF A DEEP CENTER IN DIAMOND

被引：8
|
作者：
WESTRA, J
SITTERS, R
GLASBEEK, M
机构：
[1] Laboratory for Physical Chemistry, University of Amsterdam, 1018 WS Amsterdam
来源：
PHYSICAL REVIEW B | 1992年 / 45卷 / 10期
关键词：
D O I：
10.1103/PhysRevB.45.5699
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
From an optically detected magnetic resonance study of the 2.818-eV zero-phonon emission in brown diamond, direct evidence for the existence of a photoexcited phosphorescent triplet state in diamond has been obtained. The emission is attributed to a deep-center triplet state with spin-Hamiltonian parameters \D\ = 924 +/- 2 MHz, \E\ = 198 +/- 2 MHz, and g = 2.00. The magnetic main axes are along [100], [011], and [011BAR]. Time-resolved microwave recovery and microwave-induced delayed phosphorescence experiments at 1.4 K yield lifetimes of the radiative sublevels of 0.5 and 1.8 ms, whereas the nonradiative sublevel has a lifetime of 23 ms.
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页码：5699 / 5702
页数：4
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