Universal linear relations between susceptibility and Tc in cuprates

Abstract

We developed an experimental method for measuring the intrinsic susceptibility χof powder of cuprate superconductors in the zero field limit using a DC-magnetometer. The method is tested with lead spheres. Using this method we determine χfor a number of cuprate families as a function of doping. A universal linear (and not proportionality) relation between Tc and χis found. We suggest possible explanations for this phenomenon.

Accepted for publication in PRB

References in corpus (6)

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• Synthesis and Bulk Properties of Oxychloride Superconductor Ca2-xNaxCuO2Cl2