Formation of Ga dimer linear chains on Si(001): a first-principles study

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	Formation of Ga dimer linear chains on Si(001): a first-principles study
	E. Z. Liu; J. T. Wang; C. Y. Wang; J. Z. Jiang
	2008
发表期刊	Journal of Physics-Condensed Matter
ISSN	0953-8984
卷号	20 期号:44
摘要	Using first-principles total-energy calculations, we have systematically investigated the adsorption and diffusion of Ga dimers on Si(001) to form dimer linear chains (DLC) perpendicular to the surface dimer rows. We find that Ga dimers prefer forming DLC on Si(001) both energetically and kinetically with an anisotropy diffusing pathway, and the energy barriers for Ga dimers diffusing across or along the surface dimer rows along certain paths can be significantly reduced by the interaction of Ga dimers. As a result, Ga dimers can easily diffuse into the most stable sites to form one-dimensional DLC. These results reveal a natural explanation for the relevant experimental observation.
部门归属	[wang, jian-tao] chinese acad sci, inst phys, beijing natl lab condensed matter phys, beijing 100080, peoples r china. [liu, en-zuo; jiang, jian-zhong] zhejiang univ, icnsm, hangzhou 310027, peoples r china. [liu, en-zuo; jiang, jian-zhong] zhejiang univ, dept mat sci & engn, lnsm, hangzhou 310027, peoples r china. [wang, chong-yu] tsinghua univ, dept phys, beijing 100084, peoples r china. [wang, chong-yu] chinese acad sci, int ctr mat phys, shenyang 110016, peoples r china.;wang, jt (reprint author), chinese acad sci, inst phys, beijing natl lab condensed matter phys, pob 603, beijing 100080, peoples r china;wjt@aphy.iphy.ac.cn jiangjz@zju.edu.cn
关键词	Low-coverage Si(100) Growth Surface Al Adsorption Energy Phases
URL	查看原文
WOS记录号	WOS:000260028500003
引用统计	被引频次：3[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/32934
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	E. Z. Liu,J. T. Wang,C. Y. Wang,et al. Formation of Ga dimer linear chains on Si(001): a first-principles study[J]. Journal of Physics-Condensed Matter,2008,20(44).
APA	E. Z. Liu,J. T. Wang,C. Y. Wang,&J. Z. Jiang.(2008).Formation of Ga dimer linear chains on Si(001): a first-principles study.Journal of Physics-Condensed Matter,20(44).
MLA	E. Z. Liu,et al."Formation of Ga dimer linear chains on Si(001): a first-principles study".Journal of Physics-Condensed Matter 20.44(2008).