2020/12/04 by Moloud Tamadonpour, Tamadonpour, Moloud, H. Yavari +1
Materials Science · Physics and Astronomy · #FOS: Physical sciences #Iron-based superconductors research #Physics of Superconductivity and Magnetism #Superconductivity (cond-mat.supr-con) #Superconductivity in MgB2 and Alloys
paper · pdf · doi:10.48550/arxiv.2012.02810
openalex publication_date 2020/12/04 · openalex created_date 2022/09/18 · openalex updated_date 2026/07/28
The effects of spin independent hybridization potential and spin orbit\ncoupling on two band superconductor with equal time s-wave inter band pairing\norder parameter is investigated theoretically. To study symmetry classes in two\nband superconductors the Gorkov equations are solved analytically. By defining\nspin singlet and spin triplet s wave order parameter due to two band degree of\nfreedom the symmetry classes of Cooper pair are studied. For spin singlet case\nit is shown that spin independent hybridization generates Cooper pair belongs\nto even frequency spin singlet even momentum even band parity (ESEE) symmetry\nclass for both intraband and interband pairing correlations. For spin triplet\norder parameter, intraband pairing correlation generates odd frequency spin\ntriplet even momentum even band parity (OTEE) symmetry class whereas, interband\npairing correlation generates even frequency spin triplet even momentum odd\nband parity ETEO) class. For the spin singlet, spin orbit coupling generates\npairing correlation that belongs to odd frequency spin singlet odd momentum\neven band parity (OSOE) symmetry class and even frequency spin singlet even\nmomentum even band parity (ESEE) for intraband and interband pairing\ncorrelation respectively. In the spin triplet case for itraband and interband\ncorrelation, spin orbit coupling generates even-frequency spin triplet odd\nmomentum even band parity (ETOE) and even frequency spin triplet even momentum\nodd band parity (ETEO) respectively.\n