Optically detected electron paramagnetic resonance of AlN single crystals

被引:30
作者
Mason, PM
Przybylinska, H
Watkins, GD
Choyke, WJ
Slack, GA
机构
[1] Lehigh Univ, Dept Phys, Bethlehem, PA 18015 USA
[2] Univ Pittsburgh, Dept Phys, Pittsburgh, PA 15620 USA
[3] Rensselaer Polytech Inst, Dept Phys, Troy, NY 12180 USA
关键词
D O I
10.1103/PhysRevB.59.1937
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
AlN single crystals have been investigated using photoluminescence (PL) and optical detection of electron paramagnetic resonance in the PL (ODEPR). All crystals were found to exhibit intense PL extending from the visible into the near infrared. Several S=1 centers, each with its own distinct emission spectrum, and distant S=1/2 pair recombination centers have been observed via ODEPR. In all except one center, D5, no hyperfine structure was observed preventing chemical identification of the impurity involved. In the case of D5 the partially resolved hyperfine structure suggests interaction with a 100% abundant nucleus of I similar to 5/2. We present arguments to associate it with a displaced host aluminum atom. [S0163-1829(99)03004-0].
引用
收藏
页码:1937 / 1947
页数:11
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