Magnetoresistance due to Domain Walls in Micron Scale Fe Wires with Stripe Domains

Details Magnetoresistance due to Domain Walls in Micron Scale Fe Wires with Stripe Domains Magnetoresistance due to Domain Walls in Micron Scale Fe Wires with Stripe Domains

1998-03-09

arxiv.org/abs/cond-mat/9803101v1

IEEE Transactions on Magnetics 34, 900 (1998)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

8 pages, 3 postscript figures, and 2 jpg images (Fig 1 and 2) to appear in IEEE Transactions on Magnetics (Fall 1998)

Scientific paper

10.1109/20.706305

The magnetoresistance (MR) associated with domain boundaries has been investigated in microfabricated bcc Fe (0.65 to 20 $\mu$m linewidth) wires with controlled stripe domains. Domain configurations have been characterized using magnetic force microscopy. MR measurements as a function of field angle, temperature and domain configuration are used to estimate MR contributions due to resistivity anisotropy and domain walls. Evidence is presented that domain boundaries enhance the conductivity in such microstructures over a broad range of temperatures (1.5 K to 80 K).

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