Local structures around 3d metal dopants in topological insulator Bi2Se3 studied by EXAFS measurements
Liu, Z; Wei, XY; Wang, JJ; Pan, H; Ji, FH; Xi, FC; Zhang, J; Hu, TD; Zhang, S; Jiang, Z; Wen, W; Huang, YY; Ye, M; Yang, ZQ; Qiao, S
刊名PHYSICAL REVIEW B
2014
卷号90期号:9页码:94107
学科分类Physics
DOI10.1103/PhysRevB.90.094107
英文摘要Transition-metal-doped Bi2Se3 crystals, X0.05Bi2Se3 (X = Cr, Co, Ni, and Cu), are prepared and studied by powder x-ray diffraction and extended x-ray absorption fine structure (EXAFS) measurements to get the local structures around the dopants. Cr atoms substitute Bi atoms and Co atoms may substitute Bi atoms or form Co3Se4 (C2/m) clusters. Cu is also found taking the Bi substitutional site, which differs from the reported superconductor phase of Cu-doped Bi2Se3, suggesting the dependence of site occupancy of Cu in Bi2Se3 on the process of sample growing. For Ni0.05Bi2Se3, Ni atoms form Ni3Se4 (C2/m) clusters. The nearest neighbors of X (X = Cr, Co, and Cu) are Se atoms, and the X-Se bond lengths are extracted from EXAFS as 2.50 angstrom for Cr-Se, 2.40 angstrom for Co-Se, and 2.38 angstrom for Cu-Se, which show the direct evidences of dramatic structural relaxations around 3d dopants. The bond information of local structures around dopants is valuable for subsequent theoretical studies, and can hardly be obtained from other techniques.
收录类别SCI
WOS记录号WOS:000341294600001
引用统计
被引频次:11[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/225256
专题中国科学院高能物理研究所_多学科研究中心_期刊论文
推荐引用方式
GB/T 7714
Liu, Z,Wei, XY,Wang, JJ,et al. Local structures around 3d metal dopants in topological insulator Bi2Se3 studied by EXAFS measurements[J]. PHYSICAL REVIEW B,2014,90(9):94107.
APA Liu, Z.,Wei, XY.,Wang, JJ.,Pan, H.,Ji, FH.,...&Qiao, S.(2014).Local structures around 3d metal dopants in topological insulator Bi2Se3 studied by EXAFS measurements.PHYSICAL REVIEW B,90(9),94107.
MLA Liu, Z,et al."Local structures around 3d metal dopants in topological insulator Bi2Se3 studied by EXAFS measurements".PHYSICAL REVIEW B 90.9(2014):94107.
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
11284.pdf(4717KB)期刊论文作者接受稿开放获取CC BY-NC-SA浏览 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
[Liu, Z]的文章
[Wei, XY]的文章
[Wang, JJ]的文章
百度学术
百度学术中相似的文章
[Liu, Z]的文章
[Wei, XY]的文章
[Wang, JJ]的文章
必应学术
必应学术中相似的文章
[Liu, Z]的文章
[Wei, XY]的文章
[Wang, JJ]的文章
相关权益政策
暂无数据
收藏/分享
文件名: 11284.pdf
格式: Adobe PDF
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。