Coexistence of Superconductivity and Spin Density Wave (SDW) in Ferropnictide Ba1−xKxFe2As2

被引：0
|
作者：
Tadesse Desta
Gebregziabher Kahsay
Pooran Singh
机构：
[1] Addis Ababa University,Department of Physics
[2] Bahir Dar University,Department of Physics, College of Science
来源：
Journal of Superconductivity and Novel Magnetism | 2016年 / 29卷
关键词：
Superconductivity; Spin density wave (SDW); Coexistence; Green function; Pnictides; Ba; K; Fe; As;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
This work focuses on the theoretical investigation of the coexistence of superconductivity and spin density wave (SDW) in ferropnictide Ba1−xKxFe2As2. By developing a model Hamiltonian for the system and by using quantum field theory Green’s function formalism, we have obtained mathematical expressions for superconducting transition temperature (TC), spin density wave transition temperature (Tsdw), superconductivity order parameter (ΔSc), and spin density wave order parameter (Δsdw). By employing the experimental and theoretical values of the parameters in the obtained expressions, phase diagrams of superconducting transition temperature (TC) versus superconducting order parameter (ΔSc) and spin density wave transition temperature (Tsdw), versus spin density wave order parameter (Δsdw) have been plotted. By combining the two phase diagrams, we have demonstrated the possible coexistence of superconductivity and spin density wave (SDW) in ferropnictide Ba1−xKxFe2As2.
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页码：1433 / 1438
页数：5
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