Spin-Orbit Coupling and Superconductivity in NoncentrosymmetricHeavy Fermion Materials

虽然自旋轨道耦合影响重费米子和超导材料的性质，但其本质仍不清楚。在本研究计划中，我们试图通过de Haas-van Alphen效应和其他输运测量来阐明非中心对称化合物的自旋轨道耦合的作用。我们揭示了自旋相关的质量增强和极高的上临界场由于各向异性顺磁脱配对效应。我们还讨论了重费米子超导体在磁有序态中出现超导涨落的可能性以及低GL参数的非中心对称材料中常见的反常超导性质。

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.