Negative magnetoresistance inFe3O4∕Au∕Fespin valves
| Autor: | J. M. D. Coey, Xavier Faïn, Steven M. Watts, Sebastiaan van Dijken |
|---|---|
| Rok vydání: | 2004 |
| Předmět: | |
| Zdroj: | Physical Review B. 70 |
| ISSN: | 1550-235X 1098-0121 |
| DOI: | 10.1103/physrevb.70.052409 |
| Popis: | The structural, electrical, and magnetic properties of ${\mathrm{Fe}}_{3}{\mathrm{O}}_{4}∕\mathrm{Au}∕\mathrm{Fe}$ spin valves on $\mathrm{MgO}(001)$ are presented. In contrast to more conventional spin valve structures, the current-in-plane resistance of the ${\mathrm{Fe}}_{3}{\mathrm{O}}_{4}∕\mathrm{Au}∕\mathrm{Fe}$ spin valves is found to be smallest for an antiparallel alignment of the magnetization of the ${\mathrm{Fe}}_{3}{\mathrm{O}}_{4}$ and $\mathrm{Fe}$ layer. Since the electrical current is transported through the low resistance $\mathrm{Au}$ and $\mathrm{Fe}$ layers, the negative magnetoresistance effect is attributed to an inverse electron spin scattering asymmetry at the ${\mathrm{Fe}}_{3}{\mathrm{O}}_{4}∕\mathrm{Au}$ interface. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|