Physics – Condensed Matter – Superconductivity
Scientific paper
2007-08-06
Phys. Rev. B 76, 220504(R) (2007)
Physics
Condensed Matter
Superconductivity
5 pages, 2 figures. Replaced with published version
Scientific paper
10.1103/PhysRevB.76.220504
In the hole-doped $d_{x^{2}-y^{2}}$-wave cuprate superconductor, due to the midgap surface state (MSS), a zero bias conductance peak (ZBCP) is widely observed in [110] interface point contact spectroscopy (PCS). However, ZBCP of this geometry is rarely observed in the electron-doped cuprates, even though their pairing symmetry is still likely the $d_{x^{2}-y^{2}}$-wave. We argue that this is due to the coexistence of antiferromagnetic (AF) and the superconducting (SC) orders. Generalizing the Blonder-Tinkham-Klapwijk (BTK) formula to include an AF coupling, it is shown explicitly that the MSS is destroyed by the AF order. The calculated PCS is in good agreement with the experiments.
Liu Char-Shine
Wu Way-Chen
No associations
LandOfFree
Theory of point contact spectroscopy in electron-doped cuprates 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 Theory of point contact spectroscopy in electron-doped cuprates, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Theory of point contact spectroscopy in electron-doped cuprates will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-404182