Anisotropic neutron spin resonance in superconducting BaFe1.9Ni0.1As2
文献类型:期刊论文
作者 | Lipscombe, OJ ; Harriger, LW ; Freeman, PG ; Enderle, M ; Zhang, CL ; Wang, MY ; Egami, T ; Hu, JP ; Xiang, T ; Norman, MR ; Dai, PC |
刊名 | PHYSICAL REVIEW B
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出版日期 | 2010 |
卷号 | 82期号:6 |
关键词 | SCATTERING EXCITATIONS YBA2CU3O7 SPECTRA |
ISSN号 | 1098-0121 |
通讯作者 | Lipscombe, OJ: Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA. |
中文摘要 | We use polarized inelastic neutron scattering to show that the neutron spin resonance below T-c in superconducting BaFe1.9Ni0.1As2 (T-c= 20 K) is purely magnetic in origin. Our analysis further reveals that the resonance peak near 7 meV only occurs for the planar response. This challenges the common perception that the spin resonance in the pnictides is an isotropic triplet excited state of the singlet Cooper pairs, as our results imply that only the S-001= +/- 1 components of the triplet are involved. |
收录类别 | SCI |
资助信息 | U.S. DOE BES [DE-FG02-05ER46202]; U.S. DOE, Division of Scientific User Facilities; CAS; U.S. DOE [DE-AC02-06CH11357]; DOE BES EPSCoR [DE-FG02-08ER46528] |
语种 | 英语 |
公开日期 | 2013-09-17 |
源URL | [http://ir.iphy.ac.cn/handle/311004/33784] ![]() |
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 | Lipscombe, OJ,Harriger, LW,Freeman, PG,et al. Anisotropic neutron spin resonance in superconducting BaFe1.9Ni0.1As2[J]. PHYSICAL REVIEW B,2010,82(6). |
APA | Lipscombe, OJ.,Harriger, LW.,Freeman, PG.,Enderle, M.,Zhang, CL.,...&Dai, PC.(2010).Anisotropic neutron spin resonance in superconducting BaFe1.9Ni0.1As2.PHYSICAL REVIEW B,82(6). |
MLA | Lipscombe, OJ,et al."Anisotropic neutron spin resonance in superconducting BaFe1.9Ni0.1As2".PHYSICAL REVIEW B 82.6(2010). |
入库方式: OAI收割
来源:物理研究所
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