2008/03/31 by Bin Liu, Ilya Eremin
Materials Science · Mathematics · Physics and Astronomy · #Anisotropy #Condensed matter physics #Density of states #Geometry #Homogeneous space #Impurity #Iron-based superconductors research #Isotropy #Local density of states #Mathematics #Pairing #Physics #Physics of Superconductivity and Magnetism #Quantum mechanics #Rare-earth and actinide compounds #Superconductivity #cond-mat.str-el #cond-mat.supr-con
paper · pdf · doi:10.1103/physrevb.78.014518
published as Phys. Rev. B 78, 014518 (2008) · 5 pages, 5 figures, typos corrected, final version in Phys. Rev. B
openalex publication_date 2008/07/22 · arxiv created 2008/07/23 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
Motivated by the recent discovery of noncentrosymmetric superconductors, such as CePt3Si, CeRhSi3, and CeIrSi3, we investigate theoretically the impurity resonance states with coexisting s-wave and p-wave pairing symmetries. Due to the nodal structure of the gap function, we find single nonmagnetic impurity-induced resonances appearing in the local density of state. In particular, we analyze the evolution of the local density of states for coexisting isotropic s-wave and p-wave superconducting states, and compare with that of anisotropic s-wave and p-wave symmetries of the superconducting gap. Our results show that the scanning tunneling microscopy can shed light on the particular structure of the superconducting gap in noncentrosymmetric superconductors.