Mixed-state effect on the low-energy spin dynamics in optimally-doped iron pnictide superconductors
作者: Y. GaoT. ZhouH.X. HuangC.S. TingP.Q. Tong
作者单位: 1Department of Physics and Institute of Theoretical Physics, Nanjing Normal University, Nanjing, Jiangsu 210023, China
2College of Science, Nanjing University of Aeronautics and Astronautics, Nanjing, Jiangsu 210016, China
3Department of Physics, Shanghai University, Shanghai 200444, China
4Department of Physics and Texas Center for Superconductivity, University of Houston, Houston, TX 77204, USA
刊名: Physica C: Superconductivity and its applications, 2014, Vol.501 , pp.32-35
来源数据库: Elsevier Journal
DOI: 10.1016/j.physc.2014.03.024
关键词: Iron pnictidesSpin dynamicsMixed-state effect
英文摘要: Abstract(#br)Based on a phenomenological model with s ± pairing symmetry, the mixed-state effect on the low-energy spin dynamics in optimally-doped iron pnictide superconductors is studied by solving Bogoliubov–de Gennes equations. Our results of the spin susceptibility at q = Q in the normal, superconducting and mixed states agree qualitatively with recent neutron scattering experiments. We also propose that the field-induced intensity change in both momentum and real space can be used to further verify the s ± pairing symmetry in the iron pnictides.
全文获取路径: Elsevier  (合作)
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影响因子:0.718 (2012)

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