Creation of highly efficient energy-functional materials using ion-scattering irradiation
| Project/Area Number |
17H04980
|
|---|
| Research Category |
Grant-in-Aid for Young Scientists (A)
|
| Allocation Type | Single-year Grants |
|---|
| Research Field |
Energy engineering
|
|---|
| Research Institution | Kwansei Gakuin University |
|---|
Principal Investigator |
|
|---|
| Project Period (FY) |
2017-04-01 – 2020-03-31
|
| Project Status |
Completed (Fiscal Year 2019)
|
| Budget Amount *help |
¥24,050,000 (Direct Cost: ¥18,500,000、Indirect Cost: ¥5,550,000)
Fiscal Year 2019: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2018: ¥8,970,000 (Direct Cost: ¥6,900,000、Indirect Cost: ¥2,070,000)
Fiscal Year 2017: ¥11,180,000 (Direct Cost: ¥8,600,000、Indirect Cost: ¥2,580,000)
|
|---|
| Keywords | 薄膜 / イオン照射 / ナノ構造 / エネルギー機能材料 / 機能性材料 / 超伝導体 / 超伝導材料・素子 / 超伝導材料 |
|---|
| Outline of Final Research Achievements |
We investigated the effect of low-energy ion irradiation on superconducting properties and microstructures in iron-chalcogenide FeSe0.5Te0.5 (FST) thin films and high-temperature superconducting YBa2Cu3Oy (YBCO) thin films. A clear enhancement in the Jc was observed upon 6 MeV Au-ion irradiation with 1×1012 Au cm-2 dose for all field orientations at 4.2 K in FST films. Moreover, a nearly 70% increase in Jc has been achieved at a magnetic field of 9 T applied parallel to the crystallographic c axis at 10 K with little reduction of Tc. In the case of YBCO films, we found that the 10 MeV Au-ion irradiation yielded up to about 40% Jc increase in the magnetic field over 4 T. These results indicate that low-energy ion irradiation could be effective technique to enhance Jc under magnetic fields.
|
| Academic Significance and Societal Importance of the Research Achievements |
低エネルギーイオン照射は、照射するイオン種やエネルギーを変化させることで形成する結晶欠陥・格子歪みといったナノ構造を容易に制御することが可能であり、また、鉄系超伝導体や銅酸化物高温超伝導体だけでなく様々なエネルギー機能材料にも適用可能な実用的な方法であることから、超高効率エネルギー材料の高性能化や新規機能材料創生のための新機軸となりうる。
|
Report
(4 results)
Research Products
(18 results)
-
-
-
-
-
[Presentation] Effect of low-energy Au-ion irradiation on superconducting properties2020
Author(s)
Toshinori Ozaki, Takuya Kashihara, Tomoyuki Kubo, Satoshi Semboshi, Teruo Sueyoshi, Hiroyuki Okazaki, Hiroshi Koshikawa, Shunya Yamamoto, Tetsuya Yamaki, and Hitoshi Sakane
Organizer
10th Asian Conference on Applied Superconductivity and Cryogenics/ 2nd International Cryogenic Materials Conference in Asia, and the Cryogenics and Superconductivity Society of Japan Joint Conference
Related Report
Int'l Joint Research
-
-
[Presentation] Vortex pinning landscape2019
Author(s)
Toshinori Ozaki, Satoshi Semboshi, Tetsuro Sueyoshi, Hiroyuki Okazaki, Hiroshi Koshikawa, Shunya Yamamoto, Tetsuya Yamaki, and Hitoshi Sakane
Organizer
Cryogenic Engineering Conference - International Cryogenic Materials Conference
Related Report
Int'l Joint Research / Invited
-
-
-
-
-
-
-
-
-
-
-
