Magnetoresistance anisotropy of a Bi antidot array

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. Th...

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Veröffentlicht in:	IEEE transactions on magnetics 2001-07, Vol.37 (4), p.2067-2069
Hauptverfasser:	Strijkers, G.J., Yang, F.Y., Reich, D.H., Chien, C.L., Searson, P.C., Streiniker, Y.M., Bergman, D.J.
Format:	Artikel
Sprache:	eng
Schlagworte:	Antidots Arrays Astronomy Bismuth Condensed matter: electronic structure, electrical, magnetic, and optical properties Conductivity Displays Distortion Distortion measurement Domain structure (including magnetic bubbles) Exact sciences and technology Extraterrestrial measurements Magnetic field measurement Magnetic fields Magnetic films Magnetic materials Magnetic properties and materials Magnetic properties of surface, thin films and multilayers Magnetism Magnetoresistance Magnetoresistivity Mathematical analysis Physics
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Zusammenfassung:	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.
ISSN:	0018-9464 1941-0069
DOI:	10.1109/20.951055