La-doping effect on spin-orbit coupled Sr2IrO4 probed by x-ray absorption spectroscopy
Cheng, J; Sun, XY; Liu, SL; Li, B; Wang, HY; Dong, P; Wang, Y; Xu, W; Li, B (reprint author), Nanjing Univ Posts & Telecommun, Coll Sci, Ctr Adv Funct Ceram, Nanjing 210023, Jiangsu, Peoples R China.; Liu, SL (reprint author), Nanjing Univ, Suzhou High Tech Inst, Suzhou 215123, Peoples R China.
2016
发表期刊NEW JOURNAL OF PHYSICS
ISSN1367-2630
卷号18页码:-
文章类型期刊论文
摘要Sr2IrO4 was predicted to be an unconventional superconductor upon carrier doping since it highly resembles the high-temperature cuprates. Here, to understand carrier doping effect on spin-orbit coupled Mott insulator Sr2IrO4, the electronic structure and local structure distortion for Sr2-xLaxIrO4 system have been investigated by x-ray absorption spectroscopy. By comparing the intensity of white-line features at the Ir L-2,L-3 absorption edges, we observe remarkably large branching ratios in La-doped compounds, greater than that of the parent material Sr2IrO4, suggesting a strong spin-orbit interaction for Sr2IrO4-based system. Moreover, extended x-ray absorption fine structure spectra demonstrate more regular IrO6 octahedra, i.e. the weakened crystal electric field versus La-doping. By theoretical calculations, the synergistic effect of regular IrO6 octahedra and electron doping is established, which accounts for the transition from a Mott insulator to a conductive state in Sr2-xLaxIrO4-based system.
关键词5d Transition Metal Oxides Spin-orbit Interaction Crystal Electric Field Xas
DOI10.1088/1367-2630/18/9/093019
收录类别SCI
语种英语
WOS记录号WOS:000384093400004
引用统计
文献类型期刊论文
条目标识符http://ir.sinap.ac.cn/handle/331007/26557
专题中科院上海应用物理研究所2011-2018年
通讯作者Cheng, J; Liu, SL; Li, B (reprint author), Nanjing Univ Posts & Telecommun, Coll Sci, Ctr Adv Funct Ceram, Nanjing 210023, Jiangsu, Peoples R China.; Liu, SL (reprint author), Nanjing Univ, Suzhou High Tech Inst, Suzhou 215123, Peoples R China.
推荐引用方式
GB/T 7714
Cheng, J,Sun, XY,Liu, SL,et al. La-doping effect on spin-orbit coupled Sr2IrO4 probed by x-ray absorption spectroscopy[J]. NEW JOURNAL OF PHYSICS,2016,18:-.
APA Cheng, J.,Sun, XY.,Liu, SL.,Li, B.,Wang, HY.,...&Liu, SL .(2016).La-doping effect on spin-orbit coupled Sr2IrO4 probed by x-ray absorption spectroscopy.NEW JOURNAL OF PHYSICS,18,-.
MLA Cheng, J,et al."La-doping effect on spin-orbit coupled Sr2IrO4 probed by x-ray absorption spectroscopy".NEW JOURNAL OF PHYSICS 18(2016):-.
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
La-doping effect on (1933KB)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
[Cheng, J]的文章
[Sun, XY]的文章
[Liu, SL]的文章
百度学术
百度学术中相似的文章
[Cheng, J]的文章
[Sun, XY]的文章
[Liu, SL]的文章
必应学术
必应学术中相似的文章
[Cheng, J]的文章
[Sun, XY]的文章
[Liu, SL]的文章
相关权益政策
暂无数据
收藏/分享
文件名: La-doping effect on spin-orbit coupled Sr2IrO4 probed by x-ray absorption spectroscopy.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。