The interaction of coherent acoustic phonons with electrons in semiconductor superlattices
Poyser, Caroline Louise (2015) The interaction of coherent acoustic phonons with electrons in semiconductor superlattices. PhD thesis, University of Nottingham.
This thesis presents a study of the electron-phonon interaction in an n-doped weakly coupled semiconductor superlattice (SL). Two experiments were performed which studied different aspects of this interaction. Firstly, a coherent phonon optics chip was designed. This was used in an experiment where a phonon beam was passed through the SL while an electrical bias was applied to it. The experiment provided a sensitive measurement of the effects caused by bias in the SL on the phonon beam. Secondly, a train of strain pulses was passed through the SL and the charge transferred in the device due to the strain was investigated.
Actions (Archive Staff Only)