Revealing the dual nature of magnetism in iron pnictides and iron chalcogenides using x-ray emission spectroscopy
文献类型：期刊论文
| 作者 | Gretarsson, H ; Lupascu, A ; Kim, J ; Casa, D ; Gog, T ; Wu, W ; Julian, SR ; Xu, ZJ ; Wen, JS ; Gu, GD ; Yuan, RH ; Chen, ZG ; Wang, NL ; Khim, S ; Kim, KH ; Ishikado, M ; Jarrige, I ; Shamoto, S ; Chu, JH ; Fisher, IR ; Kim, YJ |
| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 2011 |
| 卷号 | 84期号:10 |
| 关键词 | SPIN TRANSITION CRYSTAL-GROWTH SUPERCONDUCTIVITY FECRAS STATE NI |
| ISSN号 | 1098-0121 |
| 通讯作者 | Gretarsson, H (reprint author), Univ Toronto, Dept Phys, 60 St George St, Toronto, ON M5S 1A7, Canada. |
| 中文摘要 | We report a Fe K beta x-ray emission spectroscopy study of local magnetic moments in various iron-based superconductors in their paramagnetic phases. Local magnetic moments are found in all samples studied: PrFeAsO, Ba(Fe,Co)(2)As(2), LiFeAs, Fe(1+x) (Te,Se), and A(2)Fe(4)Se(5) (where A = K, Rb, and Cs). The moment size is independent of temperature or carrier concentration but varies significantly across different families. Specifically, all iron pnictide samples have local moments of about 1 mu(B)/Fe, while FeTe and K(2)Fe(4)Se(5) families have much larger local moments of similar to 2 mu(B)/Fe and similar to 3.3 mu(B)/Fe, respectively. Our results illustrate the importance of multiorbital physics in describing magnetism of these compounds. |
| 收录类别 | SCI |
| 资助信息 | NSERC; CFI; OMRI; CIfAR; KOFST; U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences (BES) [W-31-109-ENG-38]; U.S. Department of Energy [DE-AC02-98CH10886]; NSFC; MOST from China; National Creative Research Initiative [2010-0018300]; JST; TRIP; U.S. Department of Energy, Office of BES [DE-AC02-76SF00515] |
| 语种 | 英语 |
| 公开日期 | 2013-09-24 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/52159]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Gretarsson, H,Lupascu, A,Kim, J,et al. Revealing the dual nature of magnetism in iron pnictides and iron chalcogenides using x-ray emission spectroscopy[J]. PHYSICAL REVIEW B,2011,84(10). |
| APA | Gretarsson, H.,Lupascu, A.,Kim, J.,Casa, D.,Gog, T.,...&Kim, YJ.(2011).Revealing the dual nature of magnetism in iron pnictides and iron chalcogenides using x-ray emission spectroscopy.PHYSICAL REVIEW B,84(10). |
| MLA | Gretarsson, H,et al."Revealing the dual nature of magnetism in iron pnictides and iron chalcogenides using x-ray emission spectroscopy".PHYSICAL REVIEW B 84.10(2011). |
入库方式： OAI收割
来源：物理研究所
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