There is a mistake when describing the plasmon peak at 4:04. Plasmon is caused by the collective oscillation of the weakly bound electrons (in the conduction or valence band), not the lattice.
@SEAN-ty8jf2 жыл бұрын
very informative and well elucidated video!!
@giovannafranklin49454 жыл бұрын
Very good video. I can't find the following videos, though.
@kelvinxiemsentamu68904 жыл бұрын
Hi Giovanna, you should be able to find the following ones from the playlist.
@anmolsharma80023 жыл бұрын
Hi. Can you please tell me. What do we understand by that negative energy spread in zero loss peak (ZLP) in the EELS spectra.?
@kelvinxiemsentamu68902 жыл бұрын
Excellent question - I actually do not have the answer for that. I assume it is from the very localized transient lattice vibration.
@anmolsharma80022 жыл бұрын
@@kelvinxiemsentamu6890 Can we say, it's an instrumental issue. And the source itself has a energy spread. May this be the reason for Negative energy? And the electron can pick up energy from the sample due to phonon interaction and the excitation of samples' atom. Is my explanation satisfactory?