Interplay of electron-electron and electron-phonon interactions in the low-temperature phase of1T−TaS2

Electron-Phonon and Electron-Electron Interactions in Quantum Transport

The objective of this work is t o shed light on electron transport through sub-micron semiconductor structures, where electronic state quantization, electron-electron interactions and electron-phonon interactions are important. We concentrate here on the most developed vertical quantum device, the double barrier resonant tunneling diode. In this work we analyze particle interactions in two stru...

Interplay between electron-phonon and Coulomb interactions in cuprates

Evidence for strong electron-phonon coupling in high-Tc cuprates is reviewed, with emphasis on the electron and phonon spectral functions. Effects due to the interplay between the Coulomb and electron-phonon interactions are studied. For weakly doped cuprates, the phonon self-energy is strongly reduced due to correlation effects, while there is no corresponding strong reduction for the electron...

Electron-phonon interactions and superconductivity.

Effective electron-electron and electron-phonon interactions in the Hubbard-Holstein model

We investigate the interplay between the electron-electron and the electron-phonon interaction in the Hubbard-Holstein model. We implement the flow-equation method to investigate within this model the effect of correlation on the electron-phonon effective coupling and, conversely, the effect of phonons in the effective electron-electron interaction. Using this technique we obtain analytical mom...

Low-temperature electron-phonon interaction in Si MOSFETs

We investigate electron-phonon coupling in a silicon metal-oxide-semiconductor field-effect transistor by measuring heat flow. Earlier studies of the electron-phonon interaction through similar measurements were complicated by electron diffusion, a competing cooling mechanism. We reduce the diffusion by using an unusually long sample, and account for the remainder by comparing results from two ...