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Reconfigurable logic via gate controlled domain wall trajectory in magnetic network structure
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 ex...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group
2016
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4738283/ https://www.ncbi.nlm.nih.gov/pubmed/26839036 http://dx.doi.org/10.1038/srep20130 |
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author | Murapaka, C. Sethi, P. Goolaup, S. Lew, W. S. |
author_facet | Murapaka, C. Sethi, P. Goolaup, S. Lew, W. S. |
author_sort | Murapaka, C. |
collection | PubMed |
description | 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. |
format | Online Article Text |
id | pubmed-4738283 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2016 |
publisher | Nature Publishing Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-47382832016-02-09 Reconfigurable logic via gate controlled domain wall trajectory in magnetic network structure Murapaka, C. Sethi, P. Goolaup, S. Lew, W. S. Sci Rep Article 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. Nature Publishing Group 2016-02-03 /pmc/articles/PMC4738283/ /pubmed/26839036 http://dx.doi.org/10.1038/srep20130 Text en Copyright © 2016, Macmillan Publishers Limited http://creativecommons.org/licenses/by/4.0/ 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 http://creativecommons.org/licenses/by/4.0/ |
spellingShingle | Article Murapaka, C. Sethi, P. Goolaup, S. Lew, W. S. Reconfigurable logic via gate controlled domain wall trajectory in magnetic network structure |
title | Reconfigurable logic via gate controlled domain wall trajectory in magnetic network structure |
title_full | Reconfigurable logic via gate controlled domain wall trajectory in magnetic network structure |
title_fullStr | Reconfigurable logic via gate controlled domain wall trajectory in magnetic network structure |
title_full_unstemmed | Reconfigurable logic via gate controlled domain wall trajectory in magnetic network structure |
title_short | Reconfigurable logic via gate controlled domain wall trajectory in magnetic network structure |
title_sort | reconfigurable logic via gate controlled domain wall trajectory in magnetic network structure |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4738283/ https://www.ncbi.nlm.nih.gov/pubmed/26839036 http://dx.doi.org/10.1038/srep20130 |
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