We have measured the magnetoresistance of a Bi antidot array film. The magnetoresistance exhibits a pronounced angular dependence on the direction of the magnetic field, e.g., the longitudinal relative magnetoresistance at 5 K displays an angular variation between 1.8 and 3.4 in a field of 4.9 T. The effect is the result of the interference between cigar-shaped regions of strong current distortions around the voids in the Bi film. The measurements can be understood and quantitatively reproduced by theoretical calculations.
|Number of pages||3|
|Journal||IEEE Transactions on Magnetics|
|Issue number||4 I|
|State||Published - Jul 2001|
|Event||8th Joint Magnetism and Magnetic Materials -International Magnetic Conference- (MMM-Intermag) - San Antonio, TX, United States|
Duration: 7 Jan 2001 → 11 Jan 2001
- Periodic composite structures