2006/05/30 by Satoshi Fujimoto · 55 citations
Materials Science · Mathematics · Physics and Astronomy · #Antiferromagnetism #Condensed matter physics #Geometry #Inversion (geology) #Iron-based superconductors research #Mathematics #NODAL #Physics #Physics of Superconductivity and Magnetism #Point reflection #Rare-earth and actinide compounds #Superconductivity #Symmetry (geometry) #cond-mat.str-el #cond-mat.supr-con
paper · pdf · doi:10.1143/jpsj.75.083704
published in Journal of the Physical Society of Japan 75(8), 083704 (Physical Society of Japan) · 4 pages, 7 figures
arxiv created 2006/05/30 · openalex publication_date 2006/08/10 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We argue the emergence of nodal excitations due to the coupling with static antiferromagnetic order in fully-gapped superconducting states in both cases with and without inversion symmetry. This line node structure is not accompanied with the sign change of the superconducting gap, in contrast to usual unconventional Cooper pairs with higher angular momenta. In the case without inversion symmetry, the stability of the nodal excitations crucially depends on the direction of the antiferromagnetic staggered magnetic moment. A possible realization of this phenomenon in CePt3Si is discussed.