2004/01/31 by Ryusuke Ikeda, Hiroto Adachi, H. Adachi
Materials Science · Physics and Astronomy · #Anisotropy #Condensed matter physics #Fermi surface #Heavy fermion #Heavy fermion superconductor #Iron-based superconductors research #Lattice (music) #Pairing #Pauli exclusion principle #Phase (matter) #Phase diagram #Physics #Physics of Superconductivity and Magnetism #Quantum mechanics #Rare-earth and actinide compounds #Superconductivity #Vortex #cond-mat.supr-con
paper · pdf · doi:10.1103/physrevb.69.212506
published as Phys.Rev.B 69, 212506 (2004) · 5 pages, 2 figures, References were added. To appear in Phys. Rev. B
arxiv created 2004/04/13 · openalex publication_date 2004/06/21 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
The mean field vortex phase diagram of a quasi-two-dimensional superconductor with a nodal d-wave pairing and with strong Pauli spin depairing is studied in the parallel field case in order to examine the effect of gap nodes on the stability of a Fulde-Ferrell-Larkin-Ovchinnikov- (FFLO-) like vortex lattice. We find through a heuristic argument and a model calculation with a fourfold anisotropic Fermi surface that the FFLO-like state is relatively suppressed as the field approaches a nodal direction. When taking account of available experimental results together, the present result strongly suggests that the pairing symmetry of CeCoIn5 should be of dxy type.