A microscopic theory is presented for the photoacoustic effect induced in solids by x-ray absorption. The photoacoustic effect results from the thermalization of the excited Auger electrons and photoelectrons. We explain the dependence of the photoacoustic signal S on photon energy and the proportionality to the x-ray absorption coefficient in agreement with recent experiments on Cu. Results are presented for the dependence of S on photon energy, sample thickness, and the electronic structure of the absorbing solid.
@article{urn:nbn:de:hebis:34-2008062022137,
author ={Garcia, Martin E. and Pastor, G. M. and Bennemann, K. H.},
title ={Theory for the Photoacoustic Response to X-Ray Absorption},
copyright ={https://rightsstatements.org/page/InC/1.0/},
language ={en},
year ={1988}
}