Coexistence of Superconductivity and Ferromagnetism in Superconducting HoMo<sub>6</sub>S<sub>8</sub>

• 作者: Gebregziabher Kahsay Tadesse Desta
• 来源期刊: 凝固态物理国际期刊(英文)
• 学科: 数学
• 关键词: SUPERCONDUCTIVITY FERROMAGNETISM COEXISTENCE Green’s Function HoMo6S8
• 年，卷（期）: 2015,（1）
• 页码范围: 27-36
• 页数: 10页
• 分类号: O1

摘要

This work focuses on the theoretical investigation of the coexistence of superconductivity and ferromagnetism in the superconducting HoMo6S8. By developing a model Hamiltonian for the system and using the Green’s function formalism and equation of motion method, we have obtained expressions for superconducting transition temperature (Tc), magnetic order temperature (Tm), superconductivity order parameter (D) and magnetic order parameter (η). By employing the experimental and theoretical values of the parameters in the obtained expressions, phase diagrams of energy gap parameter versus transition temperature, superconducting transition temperature versus magnetic order parameter and magnetic order temperature versus magnetic order parameter are plotted separately. By combining the phase diagrams of superconducting transition temperature versus magnetic order parameter and magnetic order temperature versus magnetic order parameter, we have demonstrated the possible coexistence of superconductivity and ferromagnetism in superconducting HoMo6S8.