Study on the Pressure Effect in YBa2Cu3Ox as a Function Oxygen Content x

Experimental results available in the literature were employed to study the high pressure dependence of the superconducting transition temperature T (c) of YBa2Cu3O (x) high-T (c) superconductor in a wide range of oxygen concentrations x. By the use of simple phenomenological model, we determined the T (c) (x) dependences at different constant values of pressure P to 35 GPa. We found that maximum T (c) which can be attained in YBa2Cu3O (x) material is approximately 131 K, and it is achieved for Pa parts per thousand 18 GPa in the sample with xa parts per thousand 6.74 and with zero pressure hole concentration n (h,0)a parts per thousand 0.11.