6 papers
Dopant-Induced Local Pairing Inhomogeneity in BiSrCaCuO
Jian-Xin Zhu
A new theoretical model is presented to study the nanoscale electronic inhomogeneity in high- cuprates. In this model, we argue that the randomly distributed out-of-plane inte…
Impurity-induced states in conventional and unconventional superconductors
A. V. Balatsky, I. Vekhter, Jian-Xin Zhu
We review recent developments in our understanding of how impurities influence the electronic states in the bulk of superconductors. Our focus is on the quasi-localized states in t…
Equation-of-Motion Approach to Dynamical Mean Field Theory
Jian-Xin Zhu, R. C. Albers, J. M. Wills
We propose using an equation-of-motion approach as an impurity solver for dynamical mean field theory. As an illustration of this technique, we consider a finite- Hubbard model…
Detecting Breather Excitations with Inelastic Tunneling Spectroscopy
Jian-Xin Zhu, K. O. Rasmussen, A. R. Bishop +1
We propose inelastic electron tunneling spectroscopy scanning tunneling microscopy (IETS-STM) as a means of exciting and observing intrinsic localized modes (breathers) in a macrom…
Vortex Core Excitations in Superconductors with Frustrated Antiferromagnetism
Jian-Xin Zhu, A. V. Balatsky
Motivated by recent discovery of cobalt oxide and organic superconductors, we apply an effective model with strong antiferromagnetic and superconducting pairing interaction to a re…
Vibration Mode Induced Shapiro Steps and Backaction in Josephson Junctions
Jian-Xin Zhu, Z. Nussinov, A. V. Balatsky
A model of a superconducting tunnel junction coupled to a mechanical oscillator is studied at zero temperature in the case of linear coupling between the oscillator and tunneling e…