Bistable magnetic nanowires: A new approach to non-volatile memory with single readout and automatic deletion
(2024) Journal of Materials Research — Vol. 39, n° 8, p. 1289-1299 (2024)
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- Authors
Medina, Joaquín de la Torre 
- Abstract
- A novel approach for a non-volatile destructive readout memory application using bistable magnetic nanowire arrays is presented. The encoded information is stored as binary 1 and 0 by groups of NWs magnetized in the positive and negative states, respectively. We leverage the naturally occurring switching field distribution of the NW array and a tailored alternating decreasing magnetic field to program remanent magnetic states. To retrieve the information, the measured remagnetization curve exhibits a star-like behavior with jumps and plateaus and its derivative converts this information to a binary-type format. Two encoding and readout schemes are proposed and validated: binary bits and barcodes. For each case, the implementation and optimization procedures are illustrated, along with the required processing to obtain a useful readout signal. This strategy holds potential for non-volatile memory applications in which the stored information is erased during reading and can be reused indefinitely.
- Affiliations
Citations
Velázquez Galván, Y. G., Encinas, A., Martínez-Huerta, J. M., Piraux, L., & Medina, J. d. l. T. (2024). Bistable magnetic nanowires: A new approach to non-volatile memory with single readout and automatic deletion. Journal of Materials Research, 39(8), 1289-1299. https://doi.org/10.1557/s43578-024-01310-y (Original work published 2024)