Neutronics analysis of the target-moderator-reflector (TMR) configuration for compact long pulsed neutron sources
文献类型：期刊论文
| 作者 | Zhong, B ; Liang, TJ ; Zha, H ; Yu, GL ; Wang, K ; Wei, J ; Loong, CK |
| 刊名 | NUCLEAR ENGINEERING AND DESIGN
 |
| 出版日期 | 2011 |
| 卷号 | 241期号:12页码:4720 |
| 关键词 | PERFORMANCE DESIGN LENS |
| ISSN号 | 0029-5493 |
| 通讯作者 | Zhong, B (reprint author), Tsinghua Univ, Dept Engn Phys, Beijing 100084, Peoples R China. |
| 中文摘要 | The parent compounds of iron pnictide superconductors are bad metals with a collinear antiferromagnetic structure and Neel temperatures below 220 K. Although alkaline iron selenide A(y)Fe(1.6+x)Se(2) (A = K, Rb, Cs) superconductors are isostructural with iron pnictides, in the vicinity of the undoped limit they are insulators, forming a block antiferromagnetic order and having Neel temperatures of roughly 500 K. Here we show that the spin waves of the insulating antiferromagnet Rb0.89Fe1.58Se2 can be accurately described by a local moment Heisenberg Hamiltonian. A fitting analysis of the spin wave spectra reveals that the next-nearest neighbour couplings in Rb0.89Fe1.58Se2, (Ba,Ca,Sr)Fe2As2, and Fe1.05Te are of similar magnitude. Our results suggest a common origin for the magnetism of all the Fe-based superconductors, despite having different ground states and antiferromagnetic orderings. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-24 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/49823]  |
| 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 | Zhong, B,Liang, TJ,Zha, H,et al. Neutronics analysis of the target-moderator-reflector (TMR) configuration for compact long pulsed neutron sources[J]. NUCLEAR ENGINEERING AND DESIGN,2011,241(12):4720. |
| APA | Zhong, B.,Liang, TJ.,Zha, H.,Yu, GL.,Wang, K.,...&Loong, CK.(2011).Neutronics analysis of the target-moderator-reflector (TMR) configuration for compact long pulsed neutron sources.NUCLEAR ENGINEERING AND DESIGN,241(12),4720. |
| MLA | Zhong, B,et al."Neutronics analysis of the target-moderator-reflector (TMR) configuration for compact long pulsed neutron sources".NUCLEAR ENGINEERING AND DESIGN 241.12(2011):4720. |
入库方式： OAI收割
来源：物理研究所
浏览0
下载0
收藏0
其他版本
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。