Signature of Spin Collective Mode in Local Tunneling Spectra of a d-wave Superconductor

Abstract

We consider the influence of magnetic excitations on the local density of states in the d-wave superconductor. The magnetic susceptibility is calculated within the renormalized $t-t^{\prime }-J$ model and its influence on the quasiparticle self-energy is considered using a minimal model originally proposed by Polkovnikov {\it et al.}[cond-mat/0203176]. We find the local density of states possess periodic components both along $(\pi ,0)$ and $(\pi ,\pi )$ directions with the associated wavevectors changing in magnitude as the quasiparticle energy is varied. Comparison with the STM experiment reveals that the calculated LDOS modulation is inconsistent with the measured data.

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Cited by in corpus (7)

• Interplay of electron-lattice interactions and superconductivity in Bi2Sr2CaCu2O8+d
• Effects of a Collective Spin Resonance Mode on the STM Spectra of D-Wave Superconductors
• Local Density of States and Angle-Resolved Photoemission Spectral Function of an Inhomogeneous D-wave Superconductor
• The Energy-dependent Checkerboard Patterns in Cuprate Superconductors
• Quasiparticle mirages in the tunneling spectra of d-wave superconductors
• Identifying Collective Modes via Impurities in the Cuprate Superconductors
• Coulomb Interaction-induced Checkerboard Patterns in Disordered Cuprates