Transformation of the α-phase (BEDT-TTF)2I3 to the superconducting β phase with Tc =6-7 K
Baram G. O., Buravov L. I., Degtyarev L. S., Kozlov M.E., Laukhin V.N., Laukhina E. E., Onishchenko V. G., Pokhodnya K. I., Sheinkman M. K., Shibaeva R. P., Yagubskii E. B.
The crystals of the α-phase (BEDT-TTF)2I3, which become a dielectric at 137 K, undergo a transition to the superconducting β phase with Tc = 6-7 К when they are heated to 70° С or better and then held at this temperature. The transformation is accomplished by the appearance of features on the temperature-resistance curve of the original crystal and by the heat absorption.