Localized Bosonic Modes in Superconductors

Abstract

We show that a localized bosonic mode acts as a new type of "defect" in s- and d_{x^2-y^2}-wave superconductors. The mode induces bound or resonance states, whose spectral signature are peaks in the superconductor's density of states (DOS). We study the peaks' shape and energy as a function of temperature and the mode's frequency and lifetime. We identify several characteristic signatures of the localized mode that qualitatively distinguishes its effects from those of magnetic or non-magnetic impurities.

4 pages, 4 figures

References in corpus (3)

• Electron transmission through molecules and molecular interfaces
• Interplay of magnetism and high-Tc superconductivity at individual Ni impurity atoms in Bi2Sr2CaCu2O8+d
• Local Quasiparticle States near a Unitary Impurity with Induced Magnetic Moment in a d-Wave Superconductor

Cited by in corpus (6)

• Interplay of electron-lattice interactions and superconductivity in Bi2Sr2CaCu2O8+d
• Single magnetic adsorbates on s-wave superconductors
• Role of Inelastic Tunneling through the Barrier in Scanning Tunneling Microscope Experiments on Cuprates
• Inelastic Electron Tunneling Spectroscopy for Topological Insulators
• Inelastic magnetic scattering effect on LDOS of topological insulators
• Identifying Collective Modes via Impurities in the Cuprate Superconductors