Improvement of critical current properties for nano-defects-doped high-Tc superconducting films by controlling charier density

通过控制载流子密度改善纳米缺陷掺杂高Tc超导薄膜的临界电流性能

• 批准号: 23760020
• 负责人: HARUTA Masakazu
• 金额: $ 1.58万
• 依托单位: Kochi University of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2012
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23760020/
• 关键词: 酸化物高温超伝導体; 希土類系高温超伝導体; 超伝導薄膜; 臨界電流密度; 臨界電流特性; パルスレーザ堆積; 結晶欠陥; ナノロッド; 高温超伝導薄膜; Nd:YAGレーザ; キャリア密度

To fabricate rare-earth (RE) based high-Tc superconducting (RE123) films with high critical current density (Jc) under magnetic fields at 77 K, nanorods as columnar defects were introduced into the RE123 films. Critical current properties depended on Ts, and the relationship between Jc properties and morphology of nanorods were clarified. The Ts dependences of Jc properties were different according to the composition of the superconducting matrix. Moreover, Ts-independent Jc properties were achieved by the mixture of two different types of RE as the RE123 matrix using nanorod-doped RE123 films.

为了制备在77 K磁场下具有高临界电流密度（Jc）的稀土（RE）基高Tc超导（RE 123）薄膜，在RE 123薄膜中引入纳米棒作为柱状缺陷。临界电流特性依赖于Ts，并阐明了Jc特性与纳米棒形貌的关系。根据超导基质的组成，Jc特性的Ts依赖性是不同的。此外，Ts独立的Jc性能实现了由两种不同类型的RE的混合物作为RE 123矩阵使用纳米棒掺杂的RE 123薄膜。

项目成果

Fabrication and critical current properties in Nd:YAG-PLD REBa2Cu3Oy (RE= Y and Er) thin films

Nd:YAG-PLD REBa2Cu3Oy（RE= Y 和 Er）薄膜的制备和临界电流特性

• DOI: 10.1016/j.phpro.2012.03.450
• 发表时间: 2012
• 期刊: Physics Procedia
• 作者: S. Horii;N. Fujita;Y. Ogura;T. Maeda;M. Haruta
• 通讯作者: M. Haruta

Relationship between vortex pinning properties and microstructure in Ba-Nb-O-doped YBa2Cu3Oy and ErBa2Cu3Oy films

Ba-Nb-O掺杂YBa2Cu3Oy和ErBa2Cu3Oy薄膜涡旋钉扎特性与微观结构的关系

• DOI: 10.1016/j.physc.2013.04.044
• 发表时间: 2013
• 期刊: Physica C
• 影响因子: 1.7
• 作者: M. Haruta;K. Saura;N. Fujita;Y.Ogura;A. Ichinose;T. Maeda;S. Horii
• 通讯作者: S. Horii

ナノロッド導入REBa2Cu3Oy薄膜における成膜条件に依存した局所的臨界電流密度分布

引入纳米棒的 REBa2Cu3Oy 薄膜中局部临界电流密度分布取决于沉积条件

• 发表时间: 2013
• 作者: T. Sada;K. Yamamoto;H. Yang;D. Wang;and H. Nakashima;春田正和
• 通讯作者: 春田正和

Relationship between vortex pinning properties and microstructure in Ba-Nb-O doped REBa2Cu3Oy films

Ba-Nb-O 掺杂 REBa2Cu3Oy 薄膜涡旋钉扎特性与微观结构的关系

• 发表时间: 2012
• 作者: M. Haruta;K. Saura;N. Fujita;Y. Ogura;A. Ichinose;T. Maeda;S. Horii
• 通讯作者: S. Horii

Nd:YAG-PLD法によるREBa2Cu3Oy 薄膜の作製と臨界電流特性

Nd:YAG-PLD法制备REBa2Cu3Oy薄膜及临界电流特性

• 发表时间: 2011
• 作者: T.Onuma;N.Sakai;T.Igaki;T.Yamaguchi;A.A.Yamaguchi;and T.Honda;春田正和,藤田夏斗,小椋裕太,北野弘典,前田敏彦,堀井滋
• 通讯作者: 春田正和,藤田夏斗,小椋裕太,北野弘典,前田敏彦,堀井滋