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- URN zum Zitieren dieses Dokuments:
- urn:nbn:de:bvb:355-epub-790956
- DOI zum Zitieren dieses Dokuments:
- 10.5283/epub.79095
Zusammenfassung
We fabricate ferromagnetic nanowires with constrictions whose cross section can be reduced gradually from 100 × 30 nm2 to the atomic scale and eventually to the tunneling regime by means of electromigration. The contacts are mechanically and thermally stable. We measure low-temperature magnetoresistances (MR) < 3% for contacts < 400 Ω, reproducible MR variations that are nonmonotonic in the ...
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