Effects of a Collective Spin Resonance Mode on the STM Spectra of D-Wave Superconductors

Abstract

A high-energy spin resonance mode is known to exist in many high-temperature superconductors. Motivated by recent scanning tunneling microscopy (STM) experiments in superconducting Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+\delta }$, we study the effects of this resonance mode on the local density of states (LDOS). The coupling between the electrons in a d-wave superconductor and the resonance mode produces high-energy peaks in the LDOS, which displays a two-unit-cell periodic modulation around a nonmagnetic impurity. This suggests a new means to not only detect the dynamical spin collective mode but also study its coupling to electronic excitations.

5 pages, 4 figures; typos removed; to appear in Physical Review Letters

References in corpus (6)

• How to detect fluctuating order in the high-temperature superconductors
• Imaging Quasiparticle Interference in Bi2Sr2CaCu2O8+d
• Periodic Density of States Modulations in Superconducting $\mathrm{B}{\mathrm{i}}_2\mathrm{S}{\mathrm{r}}_2\mathrm{CaC}{\mathrm{u}}_2{\mathrm{O}}_{8+\delta }$
• Inelastic Tunneling Spectroscopy in a D-wave Superconductor
• Spin collective mode and quasiparticle contributions to STM spectra of d-wave superconductors with pinning
• Signature of Spin Collective Mode in Local Tunneling Spectra of a d-wave Superconductor

Cited by in corpus (12)

• Interplay of electron-lattice interactions and superconductivity in Bi2Sr2CaCu2O8+d
• Role of Inelastic Tunneling through the Barrier in Scanning Tunneling Microscope Experiments on Cuprates
• Tuning impurity states in bilayer graphene
• Effects of ${\tau }_1$ Scattering on Fourier-Transformed Inelastic Tunneling Spectra in High-$T_c$ Cuprates with Bosonic Modes
• Fourier-Transformed Local Density of States and Tunneling into a $D$-Wave Superconductor with Bosonic Modes
• Effect of mesoscopic inhomogeneities on local tunnelling density of states
• Many-Impurity Effects in Fourier Transform Scanning Tunneling Spectroscopy
• Inelastic-impurity-scattering-induced spin texture and topological transitions in surface electron waves
• Quasiparticle mirages in the tunneling spectra of d-wave superconductors
• Bogoliubov quasiparticles coupled to the antiferromagnetic spin mode in a vortex core
• Identifying Collective Modes via Impurities in the Cuprate Superconductors
• Effect of spin excitations on the property of quasiparticles in electron-doped cuprates