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Universal linear relations between susceptibility and Tc in cuprates

Amit Kanigel·Amit Keren·Arkady Knizhnik·Oren Shafir
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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.

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Amit Kanigel, Amit Keren, Arkady Knizhnik, Oren Shafir. 2005-04-12. Universal linear relations between susceptibility and Tc in cuprates. https://doi.org/10.1103/physrevb.71.224511

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