IHEP OpenIR  > 多学科研究中心
Role of the 245 phase in alkaline iron selenide superconductors revealed by high-pressure studies
Gao, PW; Yu, R; Sun, LL; Wang, HD; Wang, Z; Wu, Q; Fang, MH; Chen, GF; Guo, J; Zhang, C; Gu, DC; Tian, HF; Li, JQ; Liu, J; Li, YC; Li, XD; Jiang, S; Yang, K; Li, AG; Si, QM; Zhao, ZX;刘景; Li YC(李延春); Li XD(李晓东)
2014
发表期刊PHYSICAL REVIEW B
卷号89期号:9页码:94514
摘要There is considerable interest in uncovering the physics of iron-based superconductivity from the alkaline iron selenides, a materials class containing an insulating phase (245 phase) and a superconducting (SC) phase. Due to the microstructural complexity of these superconductors, the role of the 245 phase in the development of the superconductivity has been a puzzle. Here we demonstrate a comprehensive high-pressure study on the insulating samples with pure 245 phase and biphasic SC samples. We find that the insulating behavior can be completely suppressed by pressure in the insulating samples and also identify an intermediate metallic (M similar to) state. The Mott insulating (MI) state of the 245 phase and the M' state coexist over a significant range of pressure up to similar to 10 GPa, the same pressure at which the superconductivity of the SC samples vanishes. Our results reveal the M' state as a pathway that connects the insulating and SC phases of the alkaline iron selenides and indicate that the coexistence and interplay between the MI and M' states is a necessary condition for superconductivity. Finally, we interpret the M' state in terms of an orbital selectivity of the correlated 3d electrons.
学科领域Physics
DOI10.1103/PhysRevB.89.094514
收录类别SCI
WOS记录号WOS:000332704400003
引用统计
被引频次:18[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/311005/225255
专题多学科研究中心
推荐引用方式
GB/T 7714
Gao, PW,Yu, R,Sun, LL,et al. Role of the 245 phase in alkaline iron selenide superconductors revealed by high-pressure studies[J]. PHYSICAL REVIEW B,2014,89(9):94514.
APA Gao, PW.,Yu, R.,Sun, LL.,Wang, HD.,Wang, Z.,...&李晓东.(2014).Role of the 245 phase in alkaline iron selenide superconductors revealed by high-pressure studies.PHYSICAL REVIEW B,89(9),94514.
MLA Gao, PW,et al."Role of the 245 phase in alkaline iron selenide superconductors revealed by high-pressure studies".PHYSICAL REVIEW B 89.9(2014):94514.
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
11283.pdf(2175KB)期刊论文作者接受稿限制开放CC BY-NC-SA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, PW]的文章
[Yu, R]的文章
[Sun, LL]的文章
百度学术
百度学术中相似的文章
[Gao, PW]的文章
[Yu, R]的文章
[Sun, LL]的文章
必应学术
必应学术中相似的文章
[Gao, PW]的文章
[Yu, R]的文章
[Sun, LL]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。