Magnetic susceptibility and crystallographic studies of a class of (BEDT-TTF)/iodine C-T composites exhibiting metallic character down to 0.34 K

摘要

Crystallographic data give proof of the existence ofa significantly ordered phase in the composites ET_2I_3. Thisphase is clearly identified as the #beta#-phase. Magneticsusceptibility data confirm the occurrence of superconductivity below 5K.