Epitaxial Ni films, e-beam nano-patterning and BMR
نویسندگان
چکیده
We have attempted to clarify possible domain-wall processes present in the recently reported large ballistic magnetoresistance effects in nano-contacts. To that effect we have used e-beam lithography applied to epitaxial Ni films to fabricate nano-bridges in more controlled geometry than electrochemical deposition. Our preliminary results indicate that magnetic domains do play a role in the magneto-resistance of these nano-bridges but the order of magnitude of the observed effect is considerably smaller than the reported observations in electrochemically prepared nano-contacts. r 2003 Elsevier B.V. All rights reserved. PACS: 75.70.k; 85.70; 3.50.j
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