Electronic Raman scattering in noncentrosymmetric superconductors.
We formulate a theory for the polarization dependence of the electronic (pair-breaking) Raman response for the recently discovered noncentrosymmetric superconductors in the clean limit at zero temperature. Possible applications include the systems CePt3Si and Li2PdxPt3-xB which reflect the two important classes of the involved spin-orbit coupling. We provide analytical expressions for the Raman vertices for these two classes and calculate the polarization dependence of the electronic spectra. We predict a two-peak structure and different power laws with respect to the unknown relative magnitude of the singlet and triplet contributions to the superconducting order parameter, revealing a large variety of characteristic fingerprints of the underlying condensate.
Klam
Ludwig
L
Max-Planck-Institut für Festkörperforschung, Heisenbergstrasse 1, D-70569 Stuttgart, Germany. L.Klam@fkf.mpg.de
Einzel
Dietrich
D
Manske
Dirk
D