Kondo screening in d-wave superconductors in a Zeeman field and implications for STM spectra of Zn-doped cuprates

Matthias Vojta; Robert Zitzler; Ralf Bulla; Thomas Pruschke

doi:10.1103/PhysRevB.66.134527

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Kondo screening in d-wave superconductors in a Zeeman field and implications for STM spectra of Zn-doped cuprates

Matthias Vojta, Robert Zitzler, Ralf Bulla, Thomas Pruschke

DOI 10.1103/PhysRevB.66.134527 · Physical Review B

T1

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Abstract

We consider the screening of an impurity moment in a d-wave superconductor under the influence of a Zeeman magnetic field. Using the numerical renormalization group technique, we investigate the resulting pseudogap Kondo problem, in particular the field-induced crossover behavior in the vicinity of the zero-field boundary quantum phase transition. The impurity spectral function and the resulting changes in the local host density of states are calculated, giving specific predictions for high-field scanning tunneling microscopy measurements on impurity-doped cuprates.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
Bi2Sr2CaCu2O8 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown