Observation of crossed Andreev reflection by using high polarized nano-pillar and application for quantum bits
| Project/Area Number |
26790041
|
|---|
| Research Category |
Grant-in-Aid for Young Scientists (B)
|
| Allocation Type | Multi-year Fund |
|---|
| Research Field |
Applied materials
|
|---|
| Research Institution | Kyushu University |
|---|
Principal Investigator |
OHNISHI Kohei 九州大学, 理学(系)研究科(研究院), 助教 (30722293)
|
|---|
| Project Period (FY) |
2014-04-01 – 2016-03-31
|
| Project Status |
Completed (Fiscal Year 2015)
|
| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2015: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2014: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
|
|---|
| Keywords | スピントロニクス / 超伝導体 / ナノピラー構造 / 交差アンドレーエフ反射 |
|---|
| Outline of Final Research Achievements |
The purpose of the project is the observation of the crossed Andreev reflection in the novel structure in which the spin polarized current is injected efficiently into the superconductor/normal metal (S/N) bilayer with the very low Joule heating. As a result, the spin polarized component in the charge current could not be injected through the S/N interface. And also, it was experimentally shown that spin polarized electrons and Cooper pairs can co-exist in the normal metal layer. Moreover, by using the spin polarized current, it was realized that forming the superconducting gap at the S/N interface is observed. These results indicates that the S/N bilayer system have some advantage in the measurement in the superconductor-based hybrid nano-structure such as that for the crossed Andreev reflection measurement.
|
Report
(3 results)
Research Products
(12 results)
