ITP OpenIR  > 理论物理所1978-2010年知识产出
Surface structures of ternary iron arsenides AFe(2)As(2) (A = Ba, Sr, or Ca)
Gao, Miao; Ma, Fengjie; Lu, Zhong-Yi; Xiang, Tao; Gao, MA , Renmin Univ China, Dept Phys, Beijing 100872, Peoples R China
2010
发表期刊PHYSICAL REVIEW B
ISSN1098-0121
卷号81期号:19页码:-
摘要By the first-principles electronic structure calculations, we find that energetically the most favorable cleaved AFe(2)As(2)(001) surface is A-terminated with either root 2 x root 2 or 1 x 2 order. For BaFe(2)As(2), the surface Ba atoms are predominantly in a root 2 x root 2 order. A low-temperature cleaving may generate a metastable As-terminated surface. The As-terminated surface in the antiferromagnetic orthorhombic BaFe(2)As(2) also takes a root 2 x root 2 order, resulting from the buckling of the surface As atoms and giving rise to a switchable root 2 x root 2 scanning tunneling microscopy (STM) pattern upon varying the applied bias. In a 1 x 2-ordered A-terminated surface, the high-density spots in the STM image do not directly correspond to the positions of surface atoms. Our results are consistent with the STM observations and resolve the discrepancy between different experimental groups. The study helps establish a physical picture to understand the cleaved AFe(2)As(2) surfaces.
部门归属[Gao, MA; Ma, FJ; Lu, ZY] Renmin Univ China, Dept Phys, Beijing 100872, Peoples R China; [Ma, FJ; Xiang, T] Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China; [Xiang, T] Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China
学科领域Physics
资助者National Natural Science Foundation of China; MOST, China ; National Natural Science Foundation of China; MOST, China ; National Natural Science Foundation of China; MOST, China ; National Natural Science Foundation of China; MOST, China
URL查看原文
收录类别SCI
资助者National Natural Science Foundation of China; MOST, China ; National Natural Science Foundation of China; MOST, China ; National Natural Science Foundation of China; MOST, China ; National Natural Science Foundation of China; MOST, China
WOS记录号WOS:000278142000019
引用统计
被引频次:19[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/5105
专题理论物理所1978-2010年知识产出
通讯作者Gao, MA , Renmin Univ China, Dept Phys, Beijing 100872, Peoples R China
推荐引用方式
GB/T 7714
Gao, Miao,Ma, Fengjie,Lu, Zhong-Yi,et al. Surface structures of ternary iron arsenides AFe(2)As(2) (A = Ba, Sr, or Ca)[J]. PHYSICAL REVIEW B,2010,81(19):-.
APA Gao, Miao,Ma, Fengjie,Lu, Zhong-Yi,Xiang, Tao,&Gao, MA , Renmin Univ China, Dept Phys, Beijing 100872, Peoples R China.(2010).Surface structures of ternary iron arsenides AFe(2)As(2) (A = Ba, Sr, or Ca).PHYSICAL REVIEW B,81(19),-.
MLA Gao, Miao,et al."Surface structures of ternary iron arsenides AFe(2)As(2) (A = Ba, Sr, or Ca)".PHYSICAL REVIEW B 81.19(2010):-.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
Surface structures o(423KB) 开放获取使用许可请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Gao, Miao]的文章
[Ma, Fengjie]的文章
[Lu, Zhong-Yi]的文章
百度学术
百度学术中相似的文章
[Gao, Miao]的文章
[Ma, Fengjie]的文章
[Lu, Zhong-Yi]的文章
必应学术
必应学术中相似的文章
[Gao, Miao]的文章
[Ma, Fengjie]的文章
[Lu, Zhong-Yi]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。