Abstract
For the first time a crystallographically defined planar grain boundary in a specially grown bicrystals was moved under the action of a magnetic driving force. The mobility of 90° tilt grain boundaries with identical misorientation but different boundary inclination in Bi-bicrystals was investigated. The driving force for grain boundary motion was created by the action of a magnetic field on bicrystals of bismuth, which is magnetically anisotropic with different susceptibilities parallel and perpendicular to the trigonal axis. The driving force dependency of boundary velocity was measured and the absolute value of grain boundary mobility was determined. The grain boundary mobility was found to strongly depend on grain boundary inclination. The mobility of the asymmetrical grain boundary was found to depend on the direction of motion.
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