Unconventional superconductivity in CuxBi2Se3
  We report point contact measurements in high quality single crystals of Cu0.2Bi2Se3. We observe three different kinds of spectra: (1) Andreev-reflection spectra, from which we infer a superconducting gap size of 0.6mV; (2) spectra with a large gap which closes above Tc at about 10K; and (3) tunneling-like spectra with zero-bias conductance peaks. These tunneling spectra show a very large gap of ~2meV (2Delta/KTc ~ 14). 
T. Kirzhner, E. Lahoud, K. B. Chaska, Z. Salman and A. Kanigel
cond-mat.supr-con cond-mat.str-el