Mechanisms of diffusion of boron impurities in SiO2.
Mechanisms of diffusion of boron impurities in SiO2.
复制标题
硼杂质在SiO2 中的扩散机制。
DOI:
10.1103/physrevlett.90.075901
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发表时间:
2003
影响因子:
8.6
通讯作者:
A. Oshiyama
中科院分区:
文献类型:
--
作者:
M. Otani;K. Shiraishi;A. Oshiyama
We report first-principle total-energy calculations that clarify mechanisms of boron diffusion in SiO2. We find that a B atom takes a variety of stable and metastable geometries depending on its charge state. We also find that atomic rearrangements during the diffusion manifest a wealth of bonding feasibility in SiO2 and that the calculated activation energy agrees with the experimental data available. Recombination enhanced diffusion is also proposed.