Evidence for diamagnetism in(TMTSF)2FSO3(bis-tetramethyltetrathiafulvalenium fluorosulfate) at low temperature under pressure

Abstract

We have searched for and found superconducting diamagnetic screening currents as well as Meissner effects in ${\mathrm{}\left(\mathrm{TMTSF}\right)\mathrm{}}_2$ ${\mathrm{FSO}}_3$ (bis-tetramethyltetrathiafulvalenium fluorosulfate) at different pressures. The largest signals, however, are only 2% of those expected for a perfect superconductor.