Model for Tunneling-mediated Impurity Resonances in Bilayer Cuprate Superconductors

Details Model for Tunneling-mediated Impurity Resonances in Bilayer Cuprate Superconductors Model for Tunneling-mediated Impurity Resonances in Bilayer Cuprate Superconductors

2008-10-11

arxiv.org/abs/0810.2043v1

Physics

Condensed Matter

Superconductivity

5 pages, 4 figures

Scientific paper

We have studied tunneling-mediated local density of states (LDOS) of the surface layer of a bilayer cuprate, where a Zn impurity is located on the second Cu-O layer. When the tunneling strength between two Cu-O layers is larger than a critical value, the LDOS on the site just above the Zn impurity first exhibits a resonant peak near the Fermi surface. The larger the tunneling strength, the stronger the resonant peak. It is also shown that the height of the resonant peak oscillates decreasingly with the distance from the site just above the Zn impurity. The location of the resonant peak in the surface LDOS depends on doping, energy gap, and the tunneling strength, and has an opposite bias voltage to that on its nearest neighboring sites. The results could be tested by the STM experiments and be used to further understand the electronic properties of high temperature superconductors.

Affiliated with

Also associated with

No associations

Rating

Model for Tunneling-mediated Impurity Resonances in Bilayer Cuprate Superconductors 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 Model for Tunneling-mediated Impurity Resonances in Bilayer Cuprate Superconductors, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Model for Tunneling-mediated Impurity Resonances in Bilayer Cuprate Superconductors will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-449695