A mechanism of mixed-parity superconductivity in noncentrosymmetric correlated electron system
Abstract
In the noncentrosymmetric superconductor, the spin-singlet even-parity superconductivity and the spin-triplet odd-parity superconductivity mix each other, in principle. Due to the antisymmetric spin-orbit coupling term breaking the inversion symmetry, anomalous spin fluctuations remain with characteristic momentum dependences, in addition to usual spin fluctuations. It is shown that among anomalous spin fluctuations, antisymmetric spin fluctuations relating with the Dzyaloshinski-Moriya interaction play a role of mixing between different parity superconductivities, and the anomalous spin fluctuations are constructive for mixed-parity superconductivity to develop the spin-triplet superconducting component.
- Publication:
-
2nd Asean - Apctp Workshop on Advanced Materials Science and Nanotechnology: (AMSN 2010)
- Pub Date:
- June 2012
- DOI:
- 10.1063/1.4732466
- Bibcode:
- 2012AIPC.1455....9T
- Keywords:
-
- cerium alloys;
- fluctuations in superconductors;
- heavy fermion superconductors;
- platinum alloys;
- silicon alloys;
- spin fluctuations;
- spin-orbit interactions;
- strongly correlated electron systems;
- 71.27.+a;
- 71.70.Ej;
- 74.40.-n;
- 74.70.Tx;
- Strongly correlated electron systems;
- heavy fermions;
- Spin-orbit coupling Zeeman and Stark splitting Jahn-Teller effect;
- Heavy-fermion superconductors