宋佳明
  • 学位:博士
  • 职称:副教授
  • 所在单位:物理学院
教师拼音名称:songjiaming
所在单位:物理学院
办公地点:陕西省西安市长安区学府大道1号
性别:
在职信息:在职
毕业院校:Freie Universitaet Berlin
硕士生导师
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Mechanism of electron-beam manipulation of single dopant atoms in silicon
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0.0
DOI码:
10.1021/acs.jpcc.1c03549
发表刊物:
J. Phys. Chem. C
摘要:
The precise positioning of dopant atoms within bulk crystal lattices could enable novel applications in areas including solid-state sensing and quantum computation. Established scanning probe techniques are capable tools for the manipulation of surface atoms, but at a disadvantage due to their need to bring a physical tip into contact with the sample. This has prompted interest in electron-beam techniques, followed by the first proof-of-principle experiment of bismuth dopant manipulation in crystalline silicon. Here, we use first-principles modeling to discover a novel indirect exchange mechanism that allows electron impacts to non-destructively move dopants with atomic precision within the silicon lattice. However, this mechanism only works for the two heaviest group V donors with split-vacancy configurations, Bi and Sb. We verify our model by directly imaging these configurations for Bi and by demonstrating that the promising nuclear spin qubit Sb can be manipulated using a focused electron beam.
论文类型:
期刊论文
文献类型:
J
卷号:
125
期号:
29
页面范围:
16041
是否译文:
收录刊物:
SCI
第一作者:
Alexander Markevich
通讯作者:
Andrew R. Lupini
通讯作者:
Toma Susi
合写作者:
Bethany M. Hudak
合写作者:
Jacob Madsen
合写作者:
Jiaming Song
合写作者:
Paul C. Snijders
个人简介

宋佳明,西北大学物理学院副教授,硕士生导师。

目前主要从事纳米磁性材料的表面及界面磁性机理研究,以及新型二维范德华材料的光电及能源催化等方面的应用研究。欢迎加入,期待合作!


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