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Title: Reconfigurable logic via gate controlled domain wall trajectory in magnetic network structure
Authors: Murapaka, Chandrasekhar
Sethi, Pankaj
Goolaup, Sarjoosing
Lew, Wen Siang
Keywords: Logic Operations
Domain Wall
Issue Date: 2016
Source: Murapaka, C., Sethi, P., Goolaup, S., & Lew, W. S. (2016). Reconfigurable logic via gate controlled domain wall trajectory in magnetic network structure. Scientific Reports, 6, 20130-. doi:10.1038/srep20130
Series/Report no.: Scientific Reports
Abstract: An all-magnetic logic scheme has the advantages of being non-volatile and energy efficient over the conventional transistor based logic devices. In this work, we present a reconfigurable magnetic logic device which is capable of performing all basic logic operations in a single device. The device exploits the deterministic trajectory of domain wall (DW) in ferromagnetic asymmetric branch structure for obtaining different output combinations. The programmability of the device is achieved by using a current-controlled magnetic gate, which generates a local Oersted field. The field generated at the magnetic gate influences the trajectory of the DW within the structure by exploiting its inherent transverse charge distribution. DW transformation from vortex to transverse configuration close to the output branch plays a pivotal role in governing the DW chirality and hence the output. By simply switching the current direction through the magnetic gate, two universal logic gate functionalities can be obtained in this device. Using magnetic force microscopy imaging and magnetoresistance measurements, all basic logic functionalities are demonstrated.
DOI: 10.1038/srep20130
Rights: © 2016 The Authors (Nature Publishing Group). This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit
Fulltext Permission: open
Fulltext Availability: With Fulltext
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