Improvement of critical current densities in SmBa2Cu3Oy films with BaHfO3 nano-rods using low temperature growth technique”, Journal of Physics
Improvement of critical current densities in SmBa2Cu3Oy films with BaHfO3 nano-rods using low temperature growth technique”, Journal of Physics
复制标题
“利用低温生长技术提高 BaHfO3 纳米棒 SmBa2Cu3Oy 薄膜的临界电流密度”，《物理学杂志》
DOI：
10.1088/1742-6596/507/2/022021
复制
发表时间：
2014
期刊：
影响因子：
--
通讯作者：
Satoshi Awaji
中科院分区：
文献类型：
--
作者：
Shun Miura;Yutaka Yoshida;Yusuke Ichino;Ataru Ichinose;Kaname Matsumoto;Satoshi Awaji
研究了用脉冲激光沉积（PLD）方法制备的含BaHfO 3（BHO）纳米棒的SmBa 2 Cu 3 Oy（SmBCO）薄膜的生长温度对BHO纳米棒形貌的影响。通过改变衬底温度，采用低温生长（LTG）技术，可以控制SmBCO基质中BHO纳米棒的形态。使用LTG技术，我们可以制备SmBCO薄膜显示c轴取向，即使在较低的衬底温度在沉积过程中没有超导性能的退化，这是LTG技术的最大优点之一。在本研究中，我们发现BHO纳米棒的最佳形貌，其形貌为细、直、多方向生长。BHO纳米棒比其他形貌的BHO纳米棒更有效地提高了磁场中的J{sub c}。
We studied growth substrate temperature dependent morphologies of BaHfO{sub 3} (BHO) nano-rods for SmBa{sub 2}Cu{sub 3}O{sub y}, (SmBCO) films with BHO fabricated by pulsed laser deposition (PLD) method. The morphology of BHO nano-rods within the SmBCO matrix could be controlled by changing substrate temperatures adoping a Low Temperature Growth (LTG) technique. Using the LTG technique, we could fabricate SmBCO films showed c-axis orientation even at low substrate temperature during deposition without a degradation of superconducting properties, which is one of the most advantages of the LTG technique. In this study, we found an optimal morphology of the BHO nano-rods and the morphology was fine, straight and various growth directions. The BHO nano-rods were more effective to improve the J{sub c} in a magnetic field than other morphologies of the BHO nano-rods.