Universal linear relations between susceptibility and Tc in cuprates
arXiv:cond-mat/0504293 · doi:10.1103/PhysRevB.71.224511
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