2021/12/14 by David Möckli
Chemistry · Materials Science · Mathematics · Physics and Astronomy · #Chemistry #Condensed matter physics #Iron-based superconductors research #Mathematics #Molecule #Pairing #Physics #Physics of Superconductivity and Magnetism #Quantum mechanics #Rare-earth and actinide compounds #Singlet fission #Singlet state #Spin (aerodynamics) #Superconductivity #Symmetry (geometry) #Triplet state #cond-mat.str-el #cond-mat.supr-con
paper · pdf · doi:10.1088/1742-6596/2164/1/012009
published as J. Phys.: Conf. Ser. 2164 012009 (2022) · Extended version of a conference series paper to appear in Journal of Physics: Conference Series (SCES 2020)
arxiv created 2021/12/14 · openalex publication_date 2022/03/01 · arxiv updated 2022/03/22 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Have you been lying awake wondering what symmetries determine whether a superconductor is spin singlet, triplet, or both? We show that if BCS theory is supplied with additional degrees of freedom, spin singlet can coexist with spin triplet superconductivity. In the first part, we didactically guide the reader to the most general superconducting state using symmetry arguments. If both singlet and triplet pairing channels are present, a magnetic field can convert between spin singlet and triplet states. In the second part, we discuss two possible singlet-triplet superconductors: CeRh2As2 and bilayer-NbSe2.