High Temperature Superconducting Thick Films by use of EPD Method (II)

<p>High temperature superconducting (HTS) thick films deposited on metal Ag wire were prepared with YBCO and BSCCO powders by electrophoretic deposition method. I₂ was used as additives for surface charge of YBCO and BSCCO particles. When 2-3 wt.% BaF₂ was added in the YBCO suspension, the pores and cracks of film surface were decreased and film density could be increased. In case of YBCO films, the critical current density (J_c) was calculated at the value of 1458 A/cm² (77 K, 0 K) by 4 point prove method. BSCCO films had less cracks than YBCO films, and the critical current density (J_c) was obtained more than 10⁴ A/cm².</p>

Control of sputtering parameters for deposition of NbN thick films

We report a detailed study on control of sputtering parameters for synthesizing NbN superconducting thick films. The NbN films are deposited on single crystalline silicon (100) by DC reactive sputtering, i.e., deposition of Nb in the presence of reactive N