2003/06/30 by Raminder Kaur, R. P. Kaur, D. F. Agterberg · 13 citations
Earth and Planetary Sciences · Mathematics · Physics and Astronomy · #Advanced Condensed Matter Physics #Condensed matter physics #Cuprate #High-pressure geophysics and materials #Mathematics #Pairing #Phase (matter) #Physics #Physics of Superconductivity and Magnetism #Pseudogap #Quantum mechanics #Superconductivity #Symmetry (geometry) #Symmetry breaking #T-symmetry #cond-mat.str-el #cond-mat.supr-con
paper · pdf · doi:10.1103/physrevb.68.100506
published in Physical review. B, Condensed matter 68(10) (American Physical Society) · 5 pages, 1 figure
arxiv created 2003/08/07 · openalex publication_date 2003/09/18 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Recently, Kaminski et al. have reported that time-reversal symmetry is broken in the pseudogap phase in the high-temperature superconducting material Bi2Sr2CaCu2O_2+\ensuremathδ (Bi-2212). Here we examine the role of translationally invariant broken time-reversal states on d_x2\ensuremath-y2 superconductors. In particular, we determine the change in the superconducting order parameter structure. We find that the broken time-reversal pseudogap state that is consistent with the experiment of Kaminski et al. gives rise to a mixed singlet-triplet pairing d+ip phase. This d+ip state is shown to give rise to a helical superconducting phase. Consequences of this d+ip state on Josephson experiments are discussed.