Theoretical investigation of epitaxial deformation and the hcp-bcc transition of alkali metals

doi:10.1103/PhysRevB.60.11954

IMECH-IR > 力学所知识产出(1956-2008)

	Theoretical investigation of epitaxial deformation and the hcp-bcc transition of alkali metals
	Li WX(李微雪); Wang ZQ(王自强); Li, WX (reprint author), Chinese Acad Sci, Inst Mech, Lab Nonlinear Mech Continuous Media, Beijing 100080, Peoples R China.
发表期刊	Physical Review B
	1999
卷号	60 期号:17 页码:11954-11962
ISSN	1098-0121
摘要	The deformation of alkali metals K, Rb, and Cs under epitaxial deformation is studied via the ab initio pseudopotential plane wave method using the local-density approximation. Under loading from the stable fee phase, metastable stares along directions [001], [111], and [201] are identified. One metastable state, presented at direction [201], has a very low symmetry in contrast to the planes [001] and [201]. Our results show that the softening direction and sequences of growth is significantly affected by the existence of the metastable states and magnitude of the energy barrier. The resulting softening sequences from soft to hard are [201], [110], [001], and [111] under biaxial compression and [001], [111], [201], and [110] under biaxial tension. An orthorhombic deformation path is used to investigate the fact, that the structure of the alkali films K and Cs evolve from the quasihexagonal structure into the (110)-oriented bcc structure, observed by experiments.
学科领域	力学
DOI	10.1103/PhysRevB.60.11954
收录类别	SCI
语种	英语
WOS记录号	WOS:000083808700030
WOS研究方向	Physics
WOS类目	Physics, Condensed Matter
引用统计	被引频次：4[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/17232
专题	力学所知识产出(1956-2008)
通讯作者	Li, WX (reprint author), Chinese Acad Sci, Inst Mech, Lab Nonlinear Mech Continuous Media, Beijing 100080, Peoples R China.
推荐引用方式 GB/T 7714	Li WX,Wang ZQ,Li, WX . Theoretical investigation of epitaxial deformation and the hcp-bcc transition of alkali metals[J]. Physical Review B,1999,60,17,:11954-11962.
APA	李微雪,王自强,&Li, WX .(1999).Theoretical investigation of epitaxial deformation and the hcp-bcc transition of alkali metals.Physical Review B,60(17),11954-11962.
MLA	李微雪,et al."Theoretical investigation of epitaxial deformation and the hcp-bcc transition of alkali metals".Physical Review B 60.17(1999):11954-11962.

条目包含的文件		下载所有文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
Theoretical investig（160KB）			开放获取	--	浏览下载