| Slow spin dynamics in superconducting ca0.9ce0.1fe2as2 | |
| Nadeem, K.1,2; Zhang, W.1,3,4; Chen, D. Y.1; Ren, Z. A.1; Qiu, X. G.1 | |
| 刊名 | Scientific reports
 |
| 2015-05-29 | |
| 卷号 | 5页码:8 |
| ISSN号 | 2045-2322 |
| DOI | 10.1038/srep10700 |
| 通讯作者 | Nadeem, k.(kashifnadeem@iphy.ac.cn) |
| 英文摘要 | Slow spin dynamics has been observed in superconducting under-doped ca0.9ce0.1fe2as2 single crystal. below 100 k, the system exhibits hysteresis in the cooling and warming protocols of temperature dependent resistivity due to first order tetragonal to orthorhombic structural transition with simultaneous magnetic transition from paramagnetic to spin density wave antiferromagnetic state of the iron (fe) ions. zero field cooled/field cooled (zfc/fc) magnetization curves showed splitting at 32 k followed by a sharp increase of the fc curve and then fc plateau at low temperatures. slow spin relaxation in both the zfc and fc protocols was observed which is typical for spin-glass system. the system also showed features analogue to spin-glass behavior such as zfc peak, fc plateau, zfc slow spin relaxation, magnetic hysteresis, and zfc ac memory effect. the spin-glass like behavior was rather weak and vanished at higher fields. the origin of the slow spin dynamics could be the inhomogeneous distribution of the cerium (ce) spins ordered along the c-axis or interactions between fe and ce spins which lead to magnetic frustration of ce spins. all these findings support the coexistence of slow spin dynamics of ce spins and superconductivity in ca0.9ce0.1fe2as2 single crystal. |
| WOS关键词 | MAGNETISM ; GLASSES |
| WOS研究方向 | Science & Technology - Other Topics |
| WOS类目 | Multidisciplinary Sciences |
| 语种 | 英语 |
| 出版者 | NATURE PUBLISHING GROUP |
| WOS记录号 | WOS:000355592900001 |
| 内容类型 | 期刊论文 |
| URI标识 | http://www.corc.org.cn/handle/1471x/2373573 |
| 专题 | 物理研究所 |
| 通讯作者 | Nadeem, K. |
| 作者单位 | 1.Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China 2.Int Islamic Univ, Dept Phys, Islamabad 44000, Pakistan 3.Soochow Univ, Sch Phys Sci & Technol, Suzhou 215006, Peoples R China 4.Soochow Univ, Collaborat Innovat Ctr Suzhou Nano Sci & Technol, Suzhou 215006, Peoples R China |
| 推荐引用方式 GB/T 7714 | Nadeem, K.,Zhang, W.,Chen, D. Y.,et al. Slow spin dynamics in superconducting ca0.9ce0.1fe2as2[J]. Scientific reports,2015,5:8. |
| APA | Nadeem, K.,Zhang, W.,Chen, D. Y.,Ren, Z. A.,&Qiu, X. G..(2015).Slow spin dynamics in superconducting ca0.9ce0.1fe2as2.Scientific reports,5,8. |
| MLA | Nadeem, K.,et al."Slow spin dynamics in superconducting ca0.9ce0.1fe2as2".Scientific reports 5(2015):8. |
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