1208.2796 (Hiroshi Takatsu et al.)

Bulk superconductivity in Bi4O4S3 revealed by specific heat measurement    [PDF]

Hiroshi Takatsu, Yoshikazu Mizuguchi, Hiroki Izawa, Osuke Miura, Hiroaki Kadowaki

Specific heat experiments on a well-characterized polycrystalline sample of the BiS2 based superconductor Bi4O4S3 revealed that it shows a crear specific heat anomaly at about Tc = 4.4 K, consistent with Tc from the resistivity and dc susceptibility. This observation indicates the superconductivity of Bi4O4S3 to be bulk in nature.

View original: http://arxiv.org/abs/1208.2796