中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Inelastic Neutron-Scattering Measurements of a Three-Dimensional Spin Resonance in the FeAs-Based BaFe1.9Ni0.1As2 Superconductor

文献类型:期刊论文

作者Chi, SX ; Schneidewind, A ; Zhao, J ; Harriger, LW ; Li, LJ ; Luo, YK ; Cao, GH ; Xu, ZA ; Loewenhaupt, M ; Hu, JP ; Dai, PC
刊名PHYSICAL REVIEW LETTERS
出版日期2009
卷号102期号:10
关键词UPD2AL3
ISSN号0031-9007
通讯作者Chi, SX (reprint author), Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA.
中文摘要We use inelastic neutron scattering to study magnetic excitations of the FeAs-based superconductor BaFe1.9Ni0.1As2 above and below its T-c (=20 K). In addition to gradually open a spin gap at the in-plane antiferromagnetic ordering wave vector (1, 0, 0), the effect of superconductivity is to form a three-dimensional resonance with clear dispersion along the c axis. The intensity of the resonance develops like a superconducting order parameter, and the mode occurs at distinctively different energies at (1, 0, 0) and (1, 0, 1). If the resonance energy is associated with the superconducting gap energy Delta, then Delta is dependent on the wave vector transfers along the c axis. These results suggest that one must be careful in interpreting the superconducting gap energies obtained by surface sensitive probes such as scanning tunneling microscopy and angle resolved photoemission.
收录类别SCI
资助信息U.S. NSF [DMR-0756568]; U. S. DOE [DE-FG02-05ER4620]; NSF of China; DFG; TU Dresden; FRM II
语种英语
公开日期2014-02-20
源URL[http://ir.iphy.ac.cn/handle/311004/57843]  
专题物理研究所_所内人员在其他单位发表论文题录信息_所内人员在其他单位发表论文题录信息_期刊论文
推荐引用方式
GB/T 7714
Chi, SX,Schneidewind, A,Zhao, J,et al. Inelastic Neutron-Scattering Measurements of a Three-Dimensional Spin Resonance in the FeAs-Based BaFe1.9Ni0.1As2 Superconductor[J]. PHYSICAL REVIEW LETTERS,2009,102(10).
APA Chi, SX.,Schneidewind, A.,Zhao, J.,Harriger, LW.,Li, LJ.,...&Dai, PC.(2009).Inelastic Neutron-Scattering Measurements of a Three-Dimensional Spin Resonance in the FeAs-Based BaFe1.9Ni0.1As2 Superconductor.PHYSICAL REVIEW LETTERS,102(10).
MLA Chi, SX,et al."Inelastic Neutron-Scattering Measurements of a Three-Dimensional Spin Resonance in the FeAs-Based BaFe1.9Ni0.1As2 Superconductor".PHYSICAL REVIEW LETTERS 102.10(2009).

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来源:物理研究所

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