Inelastic Scattering from Local Vibrational Modes

Abstract

We study a nonuniversal contribution to the dephasing rate of conduction electrons due to local vibrational modes. The inelastic scattering rate is strongly influenced by multiphonon excitations, exhibiting oscillatory behaviour. For higher frequencies, it saturates to a finite, coupling dependent value. In the strong coupling limit, the phonon is almost completely softened, and the inelastic cross section reaches its maximal value. This represents a magnetic field insensitive contribution to the dephasing time in mesoscopic systems, in addition to magnetic impurities.

5 pages, 3 figures

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Cited by in corpus (7)

• Electron dephasing in homogeneous and inhomogeneous indium tin oxide thin films
• Quantum quenches and driven dynamics in a single-molecule device
• Single-molecule-mediated heat current between an electronic and a bosonic bath
• Electron-phonon interaction in a local region
• Temperature dependent conductances of deformable molecular devices
• Controlling electronic and adiabatic isolation of quantum dots from the substrate: An ionization-energy theoretic study
• Local Classical and Quantum Criticality due to Electron-Vibration Interaction