Resonant Impurity States in the D-Density-Wave Phase

Abstract

We study the electronic structure near impurities in the d-density-wave (DDW) state, a possible candidate phase for the pseudo-gap region of the high-temperature superconductors. We show that the local DOS near a non-magnetic impurity in the DDW state is {\it qualitatively} different from that in a superconductor with $d_{x^2-y^2}$-symmetry. Since this result is a robust feature of the DDW phase, it can help to identify the nature of the two different phases recently observed by scanning tunneling microscopy experiments in the superconducting state of underdoped Bi-2212 compounds.

References in corpus (3)

• Imaging the granular structure of high-Tc superconductivity in underdoped Bi2Sr2CaCu2O8+x
• Quasiparticle States around a Nonmagnetic Impurity in D-Density-Wave State of High-$T_c$ Cuprates
• Mechanism of pseudogap probed by a local impurity

Cited by in corpus (21)

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• Effect of impurities in high-symmetry lattice positions on the local density of states and conductivity of graphene
• Vortex structure in d-density wave scenario of pseudogap
• Pairing symmetry of superconducting graphene
• Competing orders and the doping and momentum dependent quasiparticle excitations in cuprate superconductors
• Effect of orbital currents on the restricted optical sum rule
• Competing Orders and Quantum Phase Fluctuations on the Low-Energy Excitations and Pseudogap Phenomena of Cuprate Superconductors
• Robustness of d-Density Wave Order to Nonmagnetic Impurities
• Two nonmagnetic impurities in the DSC and DDW state of the cuprate superconductors as a probe for the pseudogap
• Observation of electronic bound states in charge-ordered YBa${}_2$Cu${}_3$O${}_y$
• Spin-resolved impurity resonance states in electron-doped cuprate superconductors
• Short-range charge fluctuations in the two-dimensional Hubbard model
• Extinction of impurity resonances in large-gap regions of inhomogeneous d-wave superconductors
• Linear response theory around a localized impurity in the pseudogap regime of an anisotropic superconductor: precursor pairing vs the d-density-wave scenario
• Signatures of orbital loop currents in the spatially resolved local density of states
• Pair-breaking effects in the Pseudogap Regime: Application to High Temperature Superconductors
• Local density of states and Friedel oscillations around a non-magnetic impurity in unconventional density wave
• Electron correlation and impurity-induced quasiparticle resonance states in cuprate superconductors
• Infrared and electronic Raman response of coexisting d-wave density wave and d-wave superconductivity
• $\eta$-pairing on bipartite and non-bipartite lattices
• Anomalous dispersion relations in the staggered flux state