Theoretical Study of the Interplay of Superconductivity and Magnetism in FeAs Based Superconductors

• 作者: Mesfin A. Afrassa Poran Singh
• 来源期刊: 凝固态物理国际期刊(英文)
• 学科: 数学
• 关键词: SUPERCONDUCTIVITY MAGNETISM COEXISTENCE Green’s Function
• 年，卷（期）: 2014,（2）
• 页码范围: 53-57
• 页数: 5页
• 分类号: O1

摘要

The interaction of superconductivity and magnetism is studied in iron based superconductor using the Hamiltonian consisting of the itinerant electrons, localized electrons moment, and s-f interaction. Using Greens function technique and equation of motion method, we have obtained an expressions for superconducting order parameters (△(T), △(0)) and critical temperature TC, which reduce to BCS result in the absence of magnetic interactions. The result of the calculations shows that superconductivity can coexist with magnetism in iron based superconductor below the critical temperature.