Survival of thed-Wave Superconducting State near the Edge of Antiferromagnetism in the Cuprate Phase Diagram

2003/12/19 by Ahmad Hosseini, A. Hosseini, D. M. Broun +9 · 2 citations
Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Algorithm #Antiferromagnetism #Artificial intelligence #Computer science #Condensed matter physics #Enhanced Data Rates for GSM Evolution #Magnetic and transport properties of perovskites and related materials #Physics #Physics of Superconductivity and Magnetism #cond-mat.supr-con

paper · pdf · doi:10.1103/physrevlett.93.107003

4 pages, 3 figures

arxiv created 2003/12/19 · openalex publication_date 2004/09/01 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

In the cuprate superconductor YBa₂Cu₃O_6+x, hole doping in the CuO₂ layers is controlled by both oxygen content and the degree of oxygen ordering. At the composition YBa₂Cu₃O_6.35, the ordering can occur at room temperature, thereby tuning the hole doping so that the superconducting critical temperature gradually rises from 0 to 20 K. Here we exploit this to study the \stackrel^c-axis penetration depth as a function of temperature and doping. The temperature dependence shows the d-wave superconductor surviving to very low doping, with no sign of another ordered phase interfering with the nodal quasiparticles. The only apparent doping dependence is a smooth decline of superfluid density as T_c decreases.

Citations

• Unusual Superconducting State of Underdoped Cuprates
• Destruction of the Fermi surface in underdoped high-Tc superconductors
• Algebraic Fermi Liquid from Phase Fluctuations: “Topological” Fermions, Vortex “Berryons,” andQED3Theory of Cuprate Superconductors

Cited by

• Superfluid stiffness in cuprates: Effect of Mott transition and phase competition
• Competing orders and interlayer tunneling in cuprate superconductors: A finite-temperature Landau theory