Abstract :
We have carried out specific heat measurements for La2CuO4.093 electrochemically oxidized at 333 K, which has superconducting phase with Tc of 45 K. We observed the specific heat jump at 43.5±0.1 K; ΔCp=320±25 mJ/mol K, which was corresponding to superconducting transition at 45 K. The magnitude of specific heat jump was comparable with that of optimally doped (La1−xSrx)2CuO4. Our sample has been concluded to have the bulk character in superconducting phase with Tc of 45 K.
