Development of high-throughput optimization technique in superconductors with asymmetric flux pinning centers aiming to high efficient superconducting power applications

2016 Fiscal Year Final Research Report

• Project/Area Number: 15K14302
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Energy engineering
• Research Institution: Nagoya University
• Principal Investigator: Ichino Yusuke 名古屋大学, 工学研究科, 准教授 (90377812)
• Co-Investigator(Renkei-kenkyūsha): YOSHIDA Yutaka 名古屋大学, 大学院工学研究科, 教授 (20314049)
• Research Collaborator: NAKAMURA Joji ; ADACHI Kento
• Project Period (FY): 2015-04-01 – 2017-03-31
• Keywords: 高効率超伝導電力機器 / 磁束量子運動 / 非対称ピンニングセンター / ナノリソグラフ / 磁束量子ダイナミクスシミュレーション

Outline of Final Research Achievements

We tried to develop high-throughput optimization technique in superconductors with asymmetric flux pinning centers aiming to high efficient superconducting power applications. We fabricated Nd superconducting thin films with nano-seized circles (NCSs), which act as flux pinning centers (PCs). These NSCs contributed to an enhancement of critical current density (Jc) in the Nb films, and Jc increased with increasing number density of the NCSs. We simulated dynamics of flux quantum (FQ) in two-dimensional space. A superconductor model with sawtooth shape in the one side exhibited an asymmetric current-voltage curve.

Free Research Field

機能性薄膜工学