Abstract
The operations of read-in, shifting, conditional erase, and fan-out in a system of domain-wall storage and logic proposed by Smith have been experimentally demonstrated. The several operations were performed by controlling the current flowing through a configuration of wires placed closely under a 5 to 40 mil wide, 50 to 300 A thick Permalloy strip, and the sequence of events was observed on the top side of the film using the Bitter technique. The basic wiring geometry was a narrow-spaced grid of series-connected parallel wires that made an angle of 50° to 75° with the strip of film, the smaller angles being necessary for the thinner films. Conditional erase was most successful in films below 100 A thick, as in this thickness range walls of the same sense form double walls which require relatively large fields for erasure.
Operated with support from the U. S. Army, Navy, and Air Force.
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© 1962 Springer Science+Business Media New York
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Ballantyne, J.M. (1962). Demonstration of Magnetic Domain-Wall Storage and Logic. In: Osborn, J.A. (eds) Proceedings of the Seventh Conference on Magnetism and Magnetic Materials. Springer, Boston, MA. https://doi.org/10.1007/978-1-4899-6391-8_14
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DOI: https://doi.org/10.1007/978-1-4899-6391-8_14
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