2002/09/30 by Amit Keren, Amit Kanigel · 2 citations
Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Magnetic and transport properties of perovskites and related materials #Physics of Superconductivity and Magnetism #cond-mat.supr-con
paper · pdf · doi:10.1103/physrevb.68.012507
published as Phys. Rev. B 68, 012507 (2003) · This is an updated version of the original paper published in Phys. Rev. B 68, 012507 (2003) and includes new YBa2Cu3O_{6+y} data from Sanna et al. cond-mat/0403608
openalex publication_date 2003/07/28 · arxiv created 2004/07/16 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Many compounds based on CuO2 planes (cuprates) superconduct below a critical temperature Tc. Some of them show a second phase where a spontaneous static magnetic field appears below a critical temperature Tg, which is lower than Tc. By comparing Tc and Tg in numerous superconducting families, each with its own maximum Tc, we find that the same energy scale determines both critical temperatures. This clearly indicates that the origin of superconductivity in the cuprates is magnetic.