Enhanced Superconductivity in Sr2CuO4-v

Abstract

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.

References in corpus (4)

• Evidence for charge Kondo effect in superconducting Tl-doped PbTe
• A route to high temperature superconductivity in composite systems
• Enhancement of the superconducting critical temperature of Sr2CuO3+d up to 95K by ordering dopant atoms
• High pressure synthesis of a new superconductor Sr2CuO2+xCl2-y induced by apical oxygen doping

Cited by in corpus (26)

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• Multiscale distribution of oxygen puddles in 1/8 doped YBa2Cu3O6.67
• Scanning micro X-ray diffraction unveils the distribution of oxygen chains nano-puddles in YBa2Cu3O6.33
• Intrinsic arrested nanoscale phase separation near a topological Lifshitz transition in strongly correlated two-band metals
• Percolative superconductivity in La2CuO4.06 by lattice granularity patterns with scanning micro X-ray absorption near edge structure
• Fermi surface reconstruction of superoxygenated La${}_2$CuO${}_4$ with ordered oxygen interstitials
• Superconducting mechanism for the cuprate Ba${}_2$CuO${}_{3+\delta }$ based on a multiorbital Lieb lattice model
• Enhancement of Tc in the Superconductor-Insulator Phase Transition on Scale-Free Networks
• Superconductor-insulator transition in a network of 2d percolation clusters
• CDW and similarity of the Mott-Insulator-to-Metal transition in cuprates with the gas to liquid-liquid transition in supercooled water
• Different doping from apical and planar oxygen vacancies in Ba${}_2$CuO${}_{4-\delta }$ and La${}_2$CuO${}_{4-\delta }$
• Electronic structure and two-band superconductivity in unconventional high-$T_c$ cuprates Ba${}_2$CuO${}_{3+\delta }$
• Orbital Symmetry and Orbital Excitations in High-$T_c$ Superconductors
• $d$-wave and $s^{\pm }$ Pairing Strengths in Ba${}_2$CuO${}_{3+\delta }$
• Electronic structure of superoxygenated La2NiO4 domains with ordered oxygen interstitials
• Effects of excess or deficiency of oxygen content on the electronic structure of high-$T_C$ cuprates
• Multiple electronic components and Lifshitz transitions by oxygen wires formation in layered cuprates and nickelates
• Electronic structure and properties of superconducting materials with simple Fermi surfaces
• Out of plane effect on the superconductivity of Sr2-xBaxCuO3+d with Tc up to 98K
• Electronic structure of HgBa${}_2$CuO${}_{4+\delta }$ with self-organized interstitial oxygen wires in the Hg spacer planes
• Distinct oxygen hole doping in different layers of $\mathrm{S}{\mathrm{r}}_2\mathrm{Cu}{\mathrm{O}}_{4-\delta }-\mathrm{L}{\mathrm{a}}_2\mathrm{Cu}{\mathrm{O}}_4$ superlattices
• Theoretical aspects of simple and nested Fermi surfaces for superconductivity in doped semiconductors and high-$T_C$ cuprates
• Second Dome of Superconductivity in YBa${}_2$Cu${}_3$O${}_7$ at High Pressure
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