Lattice Location of Implanted 147Nd and 147*Pm in GaN Using Emission Channeling
Lattice Location of Implanted 147Nd and 147*Pm in GaN Using Emission Channeling
复制标题
使用发射沟道在 GaN 中注入 147Nd 和 147*Pm 的晶格位置
DOI:
10.1002/pssc.200390086
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发表时间:
2003
期刊:
影响因子:
--
通讯作者:
J. Correia
中科院分区:
文献类型:
--
作者:
B. Vries;U. Wahl;A. Vantomme;J. Correia
The lattice location of 147Nd and 147*Pm in thin-film, single-crystalline hexagonal GaN was studied by means of the emission channeling technique. The angular emission yields of β— particles and conversion electrons emitted by the radioactive isotopes 147Nd and 147*Pm were measured using a position-sensitive detector following 60 keV room temperature implantation at a dose of 1 × 1013 cm—2 and annealing at 900 °C. The emission patterns around the [0001], [102], [101], and [113] crystal axes give direct evidence that the majority (≈70%) of Nd and Pm atoms occupy substitutional Ga sites.