Superconductivity from buckled-honeycomb-vacancy ordering

(Science China Press) Vacancies are prevalent and versatile in materials science. The role of vacancies in strongly correlated materials, however, remains uncultivated. Recently, an unprecedented vacancy state in Ir16Sb18 was discovered by a joint team from ShaihaiTech University and Tokyo Institute of Technology, forming a buckled-honeycomb-vacancy (BHV) ordering. Superconductivity emerges by suppressing the vacancy ordering. The phase diagram reveals that the superconductivity competes with th...