The model of a hypothetical room-temperature superconductor
  The model of hypothetical superconductivity, where the energy gap asymptotically approaches zero as temperature increases, has been proposed. Formally the critical temperature of such a superconductor is equal to infinity. For practical realization of the hypothesis a superconducting material with such properties is predicted. 
K.V. Grigorishin, B. I. Lev
cond-mat.supr-con