Abstract
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 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 on photon energy, sample thickness, and the electronic structure of the absorbing solid.
- Received 28 January 1988
DOI:https://doi.org/10.1103/PhysRevLett.61.121
©1988 American Physical Society