Conventional empirical law reverses in the phase transitions of 122-type iron-based superconductors
文献类型：期刊论文
| 作者 | Yu, ZH ; Wang, L ; Wang, LH ; Liu, HZ ; Zhao, JG ; Li, CY ; Sinogeikin, S ; Wu, W ; Luo, JL ; Wang, NL ; Yang, K ; Zhao, YS ; Mao, HK |
| 刊名 | SCIENTIFIC REPORTS
 |
| 出版日期 | 2014 |
| 卷号 | 4 |
| 关键词 | X-RAY-DIFFRACTION HIGH-PRESSURE THCR2SI2-TYPE STRUCTURE 43 K STATE COORDINATION EQUATIONS |
| ISSN号 | 2045-2322 |
| 通讯作者 | wanglin@hpstar.ac.cn |
| 英文摘要 | Phase transition of solid-state materials is a fundamental research topic in condensed matter physics, materials science and geophysics. It has been well accepted and widely proven that isostructural compounds containing different cations undergo same pressure-induced phase transitions but at progressively lower pressures as the cation radii increases. However, we discovered that this conventional law reverses in the structural transitions in 122-type iron-based superconductors. In this report, a combined low temperature and high pressure X-ray diffraction (XRD) measurement has identified the phase transition curves among the tetragonal (T), orthorhombic (O) and the collapsed-tetragonal (cT) phases in the structural phase diagram of the iron-based superconductor AFe(2)As(2) (A = Ca, Sr, Eu, and Ba). The cation radii dependence of the phase transition pressure (T -> cT) shows an opposite trend in which the compounds with larger ambient radii cations have a higher transition pressure. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000346184200001 |
| 公开日期 | 2015-03-13 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/14055]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 推荐引用方式 GB/T 7714 | Yu, ZH,Wang, L,Wang, LH,et al. Conventional empirical law reverses in the phase transitions of 122-type iron-based superconductors[J]. SCIENTIFIC REPORTS,2014,4. |
| APA | Yu, ZH.,Wang, L.,Wang, LH.,Liu, HZ.,Zhao, JG.,...&Mao, HK.(2014).Conventional empirical law reverses in the phase transitions of 122-type iron-based superconductors.SCIENTIFIC REPORTS,4. |
| MLA | Yu, ZH,et al."Conventional empirical law reverses in the phase transitions of 122-type iron-based superconductors".SCIENTIFIC REPORTS 4(2014). |
入库方式： OAI收割
来源：上海应用物理研究所
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