Diamagnetic anisotropy associated with the transition into the superconducting state in intercalated Ta${\mathrm{S}}_2$ crystals is seen above 35°K. The anisotropy grows inversely with temperature obeying roughly a diamagnetic Curie law. It seems plausible to ascribe it to electron correlations which at lower temperature are responsible for the superconductivity.

• Received 2 June 1971

DOI:https://doi.org/10.1103/PhysRevLett.27.314