| Project/Area Number |
16K17737
|
|---|
| Research Category |
Grant-in-Aid for Young Scientists (B)
|
| Allocation Type | Multi-year Fund |
|---|
| Research Field |
Condensed matter physics II
|
|---|
| Research Institution | The University of Tokyo |
|---|
Principal Investigator |
|
|---|
| Research Collaborator |
TAKEYAMA Shojiro 東京大学, 物性研究所, 教授 (20163446)
|
|---|
| Project Period (FY) |
2016-04-01 – 2018-03-31
|
| Project Status |
Completed (Fiscal Year 2017)
|
| Budget Amount *help |
¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
|
|---|
| Keywords | 高温超伝導 / 超強磁場 / 電気伝導度 / テラヘルツ / 物性実験 / 光物性 |
|---|
| Outline of Final Research Achievements |
The high-frequency terahertz electrical conductivity measurement of high-temperature superconductors is planned. Using ZnTe crystal and Ti:Sapphire laser, the measurement system is developed. Due to the aging of the laser, the maintenance of the measurement system has been continued.
In parallel, I succeed the development of the high-frequency contactless electrical conductivity measurement system, using the radio frequency (~800 MHz) voltage as a probe signal. Using this instrument, the high-field property of the high-temperature superconductor was investigated. The upper critical field of one of the typical cuprate superconductor, La1.86Sr0.16Cu4, was investigated. I clarified that the Pauli paramagetic effect dominates the pair-breaking of superconductivity under high magnetic fields at low temperatures.
|
