Маgnetoresistive Effect in Granular Film Alloys Based on Ag and Fe or Со
Year: 2017
Type: article
Abstract: The results of studies magnetoresistive effect in granular film alloys based on Ag and Fe or Co were presented. It is established that in the total atomic concentration of nonmagnetic components from 15 to 68 at. % in such materials form granules, causing spin-dependent scattering of electrons and the effect of GMR, whose value at T 300 K does not exceed 0.6 %. It is shown that the indicated film systems can be used as sensitive sensor elements, since the phase composition of granules is the wide temperature and concentration intervals of stability. Based on analysis of the dependence GMR versus the radius granules Co in solid solution Ag (Co) concluded that at rgr 4-5 nm there is effective spin-dependent scattering of electrons and causes high GMR. With increasing rgr decreasing the granules concentration and, consequently, the value of GMR.
Language: English
Subfield: Condensed Matter Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W2613614830