Extinction of impurity resonances in large-gap regions of inhomogeneous d-wave superconductors

Details Extinction of impurity resonances in large-gap regions of inhomogeneous d-wave superconductors Extinction of impurity resonances in large-gap regions of inhomogeneous d-wave superconductors

2008-08-07

arxiv.org/abs/0808.0966v1

Phys. Rev. B, 78 134502 (2008)

Physics

Condensed Matter

Superconductivity

10 pages, 8 figures

Scientific paper

10.1103/PhysRevB.78.134502

Impurity resonances observed by scanning tunneling spectroscopy in the superconducting state have been used to deduce properties of the underlying pure state. Here we study a longstanding puzzle associated with these measurements, the apparent extinction of these resonances for Ni and Zn impurities in large-gap regions of the inhomogeneous BSCCO superconductor. We calculate the effect of order parameter and hopping suppression near the impurity site, and find that these two effects are sufficient to explain the missing resonances in the case of Ni. There are several possible scenarios for the extinction of the Zn resonances, which we discuss in turn; in addition, we propose measurements which could distinguish among them.

Affiliated with

Also associated with

No associations

Rating

Extinction of impurity resonances in large-gap regions of inhomogeneous d-wave 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 Extinction of impurity resonances in large-gap regions of inhomogeneous d-wave superconductors, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Extinction of impurity resonances in large-gap regions of inhomogeneous d-wave superconductors will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-213270