2008/02/29 by T. Pereg-Barnea, Marcel Franz, M. Franz · 39 citations
Materials Science · Mathematics · Physics and Astronomy · #Amplitude #Computer science #Condensed matter physics #Field (mathematics) #Geometry #Interference (communication) #Iron-based superconductors research #Magnetic field #Mathematics #Physics #Physics of Superconductivity and Magnetism #Quantum and electron transport phenomena #Quantum mechanics #Quantum tunnelling #Quasiparticle #Spectroscopy #Superconductivity #Symmetry (geometry) #Telecommunications #cond-mat.supr-con
paper · pdf · doi:10.1103/physrevb.78.020509
published in Physical Review B 78(2) (American Physical Society) · 4 pages, 2 figures; version to appear in PRB/RC
arxiv created 2008/07/12 · openalex publication_date 2008/07/21 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
Quasiparticle interference in a d-wave superconductor with weak disorder produces distinctive peaks in the Fourier-transformed local density of states measured by scanning tunneling spectroscopy. We predict that amplitudes of these peaks can be enhanced or suppressed by applied magnetic field according to a very specific pattern governed by the symmetry of the superconducting order parameter. This calculated pattern agrees with the recent experimental measurement and suggests that the technique could be useful for probing the underlying normal state at high fields.