Маgnetoresistive Effect in Granular Film Alloys Based on Ag and Fe or Со
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 t...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Sumy State University
2017-04-01
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| Series: | Журнал нано- та електронної фізики |
| Subjects: | |
| Online Access: | http://jnep.sumdu.edu.ua/download/numbers/2017/2/articles/jnep_V9_02021.pdf |
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| Summary: | 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. |
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| ISSN: | 2077-6772 |