Electronic Raman Scattering in Noncentrosymmetric Superconductors

Ludwig Klam, Dietrich Einzel, and Dirk Manske
Phys. Rev. Lett. 102, 027004 – Published 14 January 2009

Abstract

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 Li2PdxPt3xB 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.

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  • Received 1 October 2008

DOI:https://doi.org/10.1103/PhysRevLett.102.027004

©2009 American Physical Society

Authors & Affiliations

Ludwig Klam1,*, Dietrich Einzel2, and Dirk Manske1

  • 1Max-Planck-Institut für Festkörperforschung, Heisenbergstrasse 1, D-70569 Stuttgart, Germany
  • 2Walther-Meissner-Institut, Bayerische Akademie der Wissenschaften, D-85748 Garching, Germany

  • *L.Klam@fkf.mpg.de

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Vol. 102, Iss. 2 — 16 January 2009

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