MOD 방법을 이용한 Bi2Sr2CaCu2O8+d 박막 제작

초록

High Tc superconducting Bi2Sr2CaCu2O8+d (BSCCO2212) films were prepared by a metallorganic decomposition (MOD) method. The metal organic solution of BSCCO2212 was spin-coated on MgO (100) substrates at 3000 rpm for 1 min. To achieve a high critical current density, we controlled heat-treatment conditions and atmosphere. The films were annealed at temperature 750 ℃ ～ 800 ℃ in O2 or air. We obtained c-axis orientated BSCCO thin films on MgO substrates. The annealed sample at 770 ℃ with O2 showed the critical temperature about 77 K and critical current denstity of 1.19 × 105 A/cm2 about 13 K.

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