Superconducting and Magnetic Properties of  Superconductor SmFeAsO1-xFx

Gete Mekuriaw

dc.contributor.author	Gete Mekuriaw
dc.date.accessioned	2023-02-13T06:55:56Z
dc.date.available	2023-02-13T06:55:56Z
dc.date.issued	2022-11
dc.identifier.uri	http://ir.bdu.edu.et/handle/123456789/14988
dc.description.abstract	This project work focuses on the possibility of coexistence of superconductivity and magnetism in Samarium arsenide oxide superconductor (SmO1-xFxFeAs). Using the model Hamiltonian and retarded double time temperature dependent Green's function formalism, we derived the mathematical expressions for the superconducting critical temperature ( ), superconducting order parameter ( ), the magnetic order parameter (η) and magnetic ordering temperature ( ). Using the equations derived, we plotted the phase diagrams and by merging the phase diagram of the superconducting critical temperature ( ) versus the magnetic order parameter (η) and the phase diagram of magnetic ordering temperature ( ) versus the magnetic order parameter (η), we showed the region where both superconductivity and antiferromagnetism coexist. The results obtained are in broad agreement with the experimental findings. Key words: Critical temperature: The temperature below which the electrical resistance of materials goes to zero. Superconductivity: The phenomenon of exactly zero electrical resistance and expulsion of magnetic field occurring in a certain materials when cooled below a critical temperature	en_US
dc.language.iso	en_US	en_US
dc.subject	Physics	en_US
dc.title	Superconducting and Magnetic Properties of Superconductor SmFeAsO1-xFx	en_US
dc.type	Thesis	en_US