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

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 STM measurements on impurity-doped cuprates.

5 pages, 4 figs, (v2) remark on c-axis field added, discussion extended, (v3) final version as published

References in corpus (5)

• Interplay of magnetism and high-Tc superconductivity at individual Ni impurity atoms in Bi2Sr2CaCu2O8+d
• Critical local-moment fluctuations, anomalous exponents, and omega/T scaling in the Kondo problem with a pseudogap
• Kondo effect of impurity moments in d-wave superconductors: Quantum phase transition and spectral properties
• Multichannel pseudogap Kondo model: Large-N solution and quantum-critical dynamics
• Zeeman effects on the impurity-induced resonances in d-wave superconductors

Cited by in corpus (12)

• The numerical renormalization group method for quantum impurity systems
• Properties of anisotropic magnetic impurities on surfaces
• Influence of the pair coherence on the charge tunneling through a quantum dot connected to a superconducting lead
• Common non-Fermi liquid phases in quantum impurity physics
• Anomaly in the heat capacity of Kondo superconductors
• Magnetic-impurity resonance states for different pairing symmetries in twisted bilayer graphene
• Impurity resonant state in d-wave superconductors: in favor of a Kondo-like response
• Extinction of impurity resonances in large-gap regions of inhomogeneous d-wave superconductors
• Temperature dependence of the impurity-induced resonant state in Zn-doped Bi_2Sr_2CaCu_2O${}_{8+\delta }$ by Scanning Tunneling Spectroscopy
• Resonance states near a quantum magnetic impurity in single-layer FeSe superconductors with $d$-wave symmetry
• Visualizing Pairing Symmetry in Nematic Superconductors using spin-polarized spectroscopy of magnetic impurities
• Kondo Compensation in a Pseudogap Phase: a Renormalization Group Study