Abstract
The local quasiparticle density of states around a very strong nonmagnetic impurity with a Kondo-like magnetic moment induced at its nearest neighbors in a d-wave superconductor is studied. We show that the interference between the strong impurity potential scattering and the Kondo effect leads to novel quasiparticle spectra around the impurity, which are strikingly different from the case of a single unitary or magnetic impurity. The recent STM image of the local differential tunneling conductance around the Zn impurity in a high-(formula presented) cuprate can be explained if the blocking effect of BiO surface layer between the tip and probed (formula presented) plane is taken into account.
| Original language | English |
|---|---|
| Journal | Physical Review B - Condensed Matter and Materials Physics |
| Volume | 64 |
| Issue number | 6 |
| DOIs | |
| State | Published - Jan 1 2001 |
| Externally published | Yes |
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