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Theory for the Photoacoustic Response to X-Ray Absorption

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.

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@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}
}