Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
2002-08-05
Phys. Rev. B. 67, 024503 (2003)
Physics
Condensed Matter
Strongly Correlated Electrons
Scientific paper
A generalized method of image, incorporated with the non-equilibrium Keldysh-Green's function formalism, is employed to investigate the tunneling spectroscopy of hybrid systems in the configuration of planar junction. In particular, tunneling spectroscopies of several hybrid systems that exhibit zero-bias conductance peaks (ZBCP) are examined. The well-known metal--d-wave superconductor (ND) junction is first examined in detail. Both the evolution of the ZBCP versus doping and the splitting of the ZBCP in magnetic fields are computed in the framework of the slave-boson mean field theory. Further extension of our method to analyze other states shows that states with particle-hole pairing, such as d-density wave and graphene sheet, are all equivalent to a simple 1D model, which at the same time also describes the polyacetylene. We provide the criteria for the emergence of ZBCP. In particular, broken reflection symmetry at the microscopic level is shown to be a necessary condition for ZBCP to occur.
Mou Chung-Yu
Wu Shin-Tza
No associations
LandOfFree
On the Zero-Bias Conductance Peak in the Tunneling Spectroscopy does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with On the Zero-Bias Conductance Peak in the Tunneling Spectroscopy, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On the Zero-Bias Conductance Peak in the Tunneling Spectroscopy will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-250843