2001/06/01 by Y. Tanuma, Yasunari Tanuma, Y. Tanaka +2 · 1 citation
Mathematics · Physics and Astronomy · #Amplitude #Atomic physics #Computer science #Condensed matter physics #Conductance #Geometry #Mathematics #Optics #Physics #Physics of Superconductivity and Magnetism #Quantum and electron transport phenomena #Quantum tunnelling #Superconductivity #Symmetry (geometry) #Telecommunications #Topological Materials and Phenomena #Transmission (telecommunications) #Transmission coefficient #Wave function #Zero (linguistics) #cond-mat.supr-con
paper · pdf · doi:10.1103/physrevb.64.214519
22 pages, 12 figures
arxiv created 2001/06/01 · openalex publication_date 2001/11/13 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
In order to clarify the influence of (the presence of) the broken time-reversal symmetry state (BTRSS) induced near the interface, tunneling conductance spectra in normal metal/d_x2\ensuremath-y2-wave superconductor junctions are calculated on the basis of the quasiclassical Green's function method. The spatial dependence of the pair potential in the superconductor side is determined self-consistently. We discuss two types of the symmetry on the BTRSS: (i) d_x2\ensuremath-y2+is-wave state and (ii) d_x2\ensuremath-y2+idxy-wave state. It is shown that the amplitude of the subdominant component (is wave or idxy wave) is quite sensitive to the transmission coefficient of the junction. As the results, the splitting of the zero-bias conductance peak due to the BTRSS inducement is detectable only at junctions with small transmission coefficients for both cases. When the transmission coefficients are relatively large, the explicit peak splitting does not occur and the difference in the two cases appears in the height of the zero-bias peaks.