Diamagnetism around the Meissner transition in a homogeneous cuprate single crystal
Abstract
The in-plane diamagnetism around the Meissner transition was measured in a Tl2Ba2Ca2Cu3O10 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.
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