2012 Fiscal Year Final Research Report
Spin-Orbit Coupling and Superconductivity in NoncentrosymmetricHeavy Fermion Materials
| Project/Area Number |
22340088
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (B)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Research Field |
Condensed matter physics II
|
|---|
| Research Institution | Tohoku University |
|---|
Principal Investigator |
KIMURA Noriaki 東北大学, 大学院・理学研究科, 准教授 (30292311)
|
|---|
| Project Period (FY) |
2010 – 2012
|
| Keywords | 強相関系 |
|---|
| Research Abstract |
Although spin-orbit coupling influences properties of heavy fermion and superconducting materials, its nature is still unclear. In this research project, we attempted to elucidate the role of the spin-orbit coupling via the de Haas-van Alphen effect and other transport measurements for non-centrosymmetric compounds. We revealed spin-dependent mass-enhancement and extremely high upper-critical field due to the anisotropic paramagnetic de-pairing effect. We also discussed possibilities of superconducting fluctuation arising in the magnetic ordered state for a heavy fermion superconductor and an anomalous superconducting property commonly appearing in non-centrosymmetric materials with low GL parameters.
|
