2009/03/20 by T. H. Geballe, M. Marezio · 1 citation
Chemistry · Materials Science · Mathematics · Physics and Astronomy · #Advanced Condensed Matter Physics #Business #Chemistry #Condensed matter physics #Cuprate #High-temperature superconductivity #Magnetic and transport properties of perovskites and related materials #Materials science #Mathematics #Odds #Order (exchange) #Pairing #Phase (matter) #Phase diagram #Physical chemistry #Physics #Physics of Superconductivity and Magnetism #Quantum mechanics #Statistics #Stoichiometry #Superconductivity #cond-mat.str-el #cond-mat.supr-con
paper · pdf · doi:10.1016/j.physc.2009.03.054
openalex publication_date 2009/03/20 · arxiv created 2009/04/18 · arxiv updated 2015/05/13 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
A critical review of previous investigations of the superconductivity with enhanced Tc ~ 95K found in Sr2CuO4-v shows that new physics occurs in a highly overdoped region of the cuprate phase diagram. Moreover, evidence is adduced from the literature that 30% of the oxygen sites in the CuO2 layers are vacant, a conclusion which is at odds with the universally made assumption that superconductivity originates in stoichiometric CuO2 layers. While further research is needed in order to identify the pairing mechanism(s) responsible for the enhanced Tc, we suggest possible candidates.