2003/01/14 by Z. Sefrioui, D Arias, D. Arias +12 · 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
paper · pdf · doi:10.1103/physrevb.67.214511
published as Phys. Rev. B 67, 214511 (2003) · 10 pages + 5 figures, submitted to Phys. Rev. B
arxiv created 2003/01/14 · openalex publication_date 2003/06/13 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/04
We study the interplay between magnetism and superconductivity in high-quality YBa2Cu3O7(YBCO)/La0.7Ca0.3MnO3(LCMO) superlattices. We find evidence for the YBCO superconductivity depression in the presence of the LCMO layers. We show that due to its short coherence length, superconductivity survives in the YBCO down to a much smaller thickness in the presence of the magnetic layer than in low Tc superconductors. We also find that for a fixed thickness of the superconducting layer, superconductivity is depressed over a thickness interval of the magnetic layer in the 100 nm range. This is a much longer length scale than that predicted by the theory of ferromagnetic/superconducting proximity effect.