Highly Oriented HgBaCaCuO Superconducting Thin Films Prepared by Laser Ablation
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YU Yang,
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SHAO Hui-min,
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ZENG Zhao-yang,
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SUN Ai-min,
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QIN Meng-jun,
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REN Chong,
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XU Xiao-nong,
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DING Shi-ying,
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JIN Xin,
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YAO Xi-xian,
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ZHOU Jun,
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JI Zheng-ming,
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YANG Sheng-zu,
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ZHANG Wen-lan
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Abstract
Pb-doped HgBa2CaCu2Oy films were prepared on the (100) SrTiO3 substrate by using laser ablation followed by post-Hg-vapor annealing. These films are dominated by c-axis-oriented Hg-1212 phase as indicated by x-ray diffraction and electromagnetic measurements. The transition temperature Tc0 is 110 K. The critical current density Jc achieved 106 A/cm2 at 77K and zero applied field.
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