High-pressure superconducting phase of the complex molybdenum sulfides SnMo6S8, PbMoP6S8, and HgMo6S8
Alekseevskii N. E. , Evdokimova V. V., Khlybov E. P. , Novokshonov V. I.
High pressures and temperatures change the crystal lattice of the ternary molybdenum sulfides SnMo6S8 and PbMo6S8, which have the Chevrel-phase structure, but leave these compounds superconducting. The high-pressure phases have a monoclinic structure and space group P2x/m. The critical magnetic fields for the high-pressure phases are several times lower than those for the original Chevrel phases.