Diamagnetism around the Meissner transition in a homogeneous cuprate single crystal

Abstract

The in-plane diamagnetism around the Meissner transition was measured in a Tl${}_2$Ba${}_2$Ca${}_2$Cu${}_3$O${}_{10}$ single crystal of high chemical and structural quality, which minimizes the inhomogeneity and disorder rounding effects on the magnetization. When analyzed quantitatively and consistently above and below the transition in terms of the Ginzburg-Landau (GL) approach with fluctuations of Cooper pairs and vortices, these data provide a further confirmation that the observed Meissner transition is a conventional GL superconducting transition in a homogeneous layered superconductor.

5 pages, including 3 figures

References in corpus (2)

• Inhomogeneous superconductivity and the "pseudogap state of novel superconductors
• Optical and thermodynamic properties of the high-temperature superconductor HgBa_2CuO_4+delta

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