TITLE:
Coexistence of Superconductivity and Ferromagnetism in Superconducting HoMo6S8
AUTHORS:
Tadesse Desta, Gebregziabher Kahsay
KEYWORDS:
Superconductivity, Ferromagnetism, Coexistence, Green’s Function, HoMo6S8
JOURNAL NAME:
World Journal of Condensed Matter Physics,
Vol.5 No.1,
February
16,
2015
ABSTRACT: 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.