| Title | Superconducting proximity effect on the block antiferromagnetism in KyFe2-xSe2 |
| Author | |
| Corresponding Author | Jiang, Hong-Min |
| Publication Years | 2012-03-13
|
| DOI | |
| Source Title | |
| ISSN | 1098-0121
|
| Volume | 85Issue:10 |
| Abstract | It has been recently discovered that the superconducting (SC) ternary iron selenides have a block antiferromagnetic (AFM) long-range order. Many experiments show a possible mesoscopic phase separation of the superconductivity and antiferromagnetism, while a neutron experiment reveals a sizable suppression of magnetic moment due to the superconductivity, indicating a possible phase coexistence. Here we propose that the observed suppression of the magnetic moment may be explained by the proximity effect within a phase-separation scenario. We use a two-orbital model to study the proximity effect on a layer of the block AFM state induced by neighboring SC layers via an interlayer tunneling mechanism. We argue that the proximity effect in ternary Fe selenides should be large because of the large interlayer coupling and weak electron correlation. The result of our mean-field theory is compared with the neutron experiments semiquantitatively. The suppression of the magnetic moment due to the SC proximity effect is found to be more pronounced in d-wave superconductivity and may be enhanced by the frustrated structure of the block AFM state. |
| URL | [Source Record] |
| Indexed By | |
| Language | English
|
| Important Publications | NI Journal Papers
|
| SUSTech Authorship | Others
|
| Funding Project | NSF of Zhejiang Province[Z6110033]
|
| WOS Research Area | Materials Science
; Physics
|
| WOS Subject | Materials Science, Multidisciplinary
; Physics, Applied
; Physics, Condensed Matter
|
| WOS Accession No | WOS:000301407900003
|
| Publisher | |
| ESI Research Field | PHYSICS
|
| Data Source | Web of Science
|
| Citation statistics |
Cited Times [WOS]:8
|
| Document Type | Journal Article |
| Identifier | http://kc.sustech.edu.cn/handle/2SGJ60CL/30433 |
| Department | Department of Physics |
| Affiliation | 1.Univ Hong Kong, Dept Phys, Hong Kong, Hong Kong, Peoples R China 2.Univ Hong Kong, Ctr Theoret & Computat Phys, Hong Kong, Hong Kong, Peoples R China 3.Hangzhou Normal Univ, Dept Phys, Hangzhou, Zhejiang, Peoples R China 4.S Univ Sci & Technol China, Dept Phys, Shenzhen, Peoples R China 5.Zhejiang Univ, Dept Phys, Hangzhou 310003, Zhejiang, Peoples R China |
| Recommended Citation GB/T 7714 |
Jiang, Hong-Min,Chen, Wei-Qiang,Yao, Zi-Jian,et al. Superconducting proximity effect on the block antiferromagnetism in KyFe2-xSe2[J]. PHYSICAL REVIEW B,2012,85(10).
|
| APA |
Jiang, Hong-Min,Chen, Wei-Qiang,Yao, Zi-Jian,&Zhang, Fu-Chun.(2012).Superconducting proximity effect on the block antiferromagnetism in KyFe2-xSe2.PHYSICAL REVIEW B,85(10).
|
| MLA |
Jiang, Hong-Min,et al."Superconducting proximity effect on the block antiferromagnetism in KyFe2-xSe2".PHYSICAL REVIEW B 85.10(2012).
|
| Files in This Item: | There are no files associated with this item. | |||||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
; 
Edit Comment