2003/07/31 by V. A. Khodel, Victor M. Yakovenko, M. V. Zverev +1 · 1 citation
Chemistry · Physics and Astronomy · #Advanced Condensed Matter Physics #Inorganic Fluorides and Related Compounds #Physics of Superconductivity and Magnetism #cond-mat.supr-con
paper · pdf · doi:10.1103/physrevb.69.144501
published as Phys. Rev. B 69, 144501 (2004) · 6 pages, 4 figures, RevTeX 4. V.2: Extra figure and many references added. V.3: Minor update of references for the proofs
arxiv created 2004/03/13 · openalex publication_date 2004/04/02 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
We present a simple theoretical explanation for a transition from d-wave to another superconducting pairing observed in the electron-doped cuprates. The d_x2\ensuremath-y2 pairing potential \ensuremathΔ, which has the maximal magnitude and opposite signs at the hot spots on the Fermi surface, becomes suppressed with the increase of electron doping, because the hot spots approach the Brillouin zone diagonals, where \ensuremathΔ vanishes. Then, d_x2\ensuremath-y2 pairing is replaced by either singlet s-wave or triplet p-wave pairing. We argue in favor of the latter and propose experiments to uncover it.