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Pulsed laser deposition of superconducting REBa_2Cu_3O_(7-x) thin films

机译:超导REBa_2Cu_3O_(7-x)薄膜的脉冲激光沉积

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Superconducting thin films of REBa_2Cu_3O_(7-x)(RE:Sm, Eu, Gd) (RBCO) were deposited by a pulsed laser ablation technique on strontium titanate substrates at different substrate temperature and reduced oxygen pressure. The resistivity versus temperature measurements show the onset and the offset of the superconducting transition between 95 and 70 K. For all the investigated rare earths, we find a substrate temperature value for which morphological and structural analyses, performed by scanning electron microscopy and X-ray diffraction, are also reported the grown film has the offset of the superconducting transition above 90 K. Morphological and structural analyses, performed by scanning electron microscopy and X-ray diffraction, are also reported and discussed.
机译:REBa_2Cu_3O_(7-x)(RE:Sm,Eu,Gd)(RBCO)的超导薄膜通过脉冲激光烧蚀技术在不同的衬底温度和降低的氧气压力下沉积在钛酸锶衬底上。电阻率对温度的测量结果显示了超导转变在95 K和70 K之间的开始和偏移。对于所有研究的稀土,我们找到了通过扫描电子显微镜和X射线进行形态和结构分析的衬底温度值另外,还报道了生长的膜具有超过90 K的超导转变的偏移。还报道和讨论了通过扫描电子显微镜和X射线衍射进行的形态和结构分析。

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