Laser influence on magnetoresistance

We present the model of interaction between the electrons inside a ferromag netic-normal metal-ferromagnetic trilayer sample and the high intensity sho rt pulse laser light. The incident electromagnetic field of laser on sample surface perturbs the Boltzmann distribution function determined by the ele ctron-electron and electron-photon collision terms. The numerical results c onfirm that the laser pulse can influence significantly on the electron dis tribution function and as a consequence, the giant magnetoresistance. (C) 2 001 Elsevier Science Ltd. All rights reserved.