| Autor: |
Rüffer, Daniel, Czeschka, Franz D., Gross, Rudolf, Goennenwein, Sebastian T. B. |
| Rok vydání: |
2011 |
| Předmět: |
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| Zdroj: |
Appl. Phys. Lett. 99, 142112 (2011) |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1063/1.3640487 |
| Popis: |
We compare non-local magnetoresistance measurements in multi-terminal Ni nanostructures with corresponding local experiments. In both configurations, the measured voltages show the characteristic features of anisotropic magnetoresistance (AMR). However, the magnitude of the non-local AMR signal is up to one order of magnitude larger than its local counterpart. Moreover, the non-local AMR increases with increasing degree of non-locality, i.e., with the separation between the region of the main current flow and the voltage measurement region. All experimental observations can be consistently modeled in terms of current spreading in a non-isotropic conductor. Our results show that current spreading can significantly enhance the magnetoresistance signal in non-local experiments. |
| Databáze: |
arXiv |
| Externí odkaz: |
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