Hybrid normal metal/ferromagnetic nanojunctions for domain wall tracking
Abstract Hybrid normal metal/ferromagnetic, gold/permalloy (Au/Py), nanojunctions are used to investigate magnetoresistance effects and track magnetization spatial distribution in L-shaped Py nanostructures. Transversal and longitudinal resistances are measured and compared for both straight and 90°...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2017-07-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-017-06292-y |
| _version_ | 1818851572037189632 |
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| author | Héctor Corte-León Patryk Krzysteczko Alessandra Manzin Hans Werner Schumacher Vladimir Antonov Olga Kazakova |
| author_facet | Héctor Corte-León Patryk Krzysteczko Alessandra Manzin Hans Werner Schumacher Vladimir Antonov Olga Kazakova |
| author_sort | Héctor Corte-León |
| collection | DOAJ |
| description | Abstract Hybrid normal metal/ferromagnetic, gold/permalloy (Au/Py), nanojunctions are used to investigate magnetoresistance effects and track magnetization spatial distribution in L-shaped Py nanostructures. Transversal and longitudinal resistances are measured and compared for both straight and 90° corner sections of the Py nanostructure. Our results demonstrate that the absolute change in resistance is larger in the case of longitudinal measurements. However, due to the small background resistance, the relative change in the transversal resistance along the straight section is several orders of magnitude larger than the analogous longitudinal variation. These results prove that hybrid nanojunctions represent a significant improvement with respect to previously studied all-ferromagnetic crosses, as they also reduce the pinning potential at the junction and allow probing the magnetization locally. In addition, unusual metastable states with longitudinal domain walls along Py straight sections are observed. Micromagnetic simulations in combination with a magnetotransport model allow interpretation of the results and identification of the observed transitions. |
| first_indexed | 2024-12-19T07:07:09Z |
| format | Article |
| id | doaj.art-86913aa7577c4d54be8f644b101b50b7 |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-12-19T07:07:09Z |
| publishDate | 2017-07-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-86913aa7577c4d54be8f644b101b50b72022-12-21T20:31:15ZengNature PortfolioScientific Reports2045-23222017-07-01711810.1038/s41598-017-06292-yHybrid normal metal/ferromagnetic nanojunctions for domain wall trackingHéctor Corte-León0Patryk Krzysteczko1Alessandra Manzin2Hans Werner Schumacher3Vladimir Antonov4Olga Kazakova5National Physical LaboratoryPhysikalisch-Technische BundesanstaltIstituto Nazionale di Ricerca MetrologicaPhysikalisch-Technische BundesanstaltRoyal Holloway University of LondonNational Physical LaboratoryAbstract Hybrid normal metal/ferromagnetic, gold/permalloy (Au/Py), nanojunctions are used to investigate magnetoresistance effects and track magnetization spatial distribution in L-shaped Py nanostructures. Transversal and longitudinal resistances are measured and compared for both straight and 90° corner sections of the Py nanostructure. Our results demonstrate that the absolute change in resistance is larger in the case of longitudinal measurements. However, due to the small background resistance, the relative change in the transversal resistance along the straight section is several orders of magnitude larger than the analogous longitudinal variation. These results prove that hybrid nanojunctions represent a significant improvement with respect to previously studied all-ferromagnetic crosses, as they also reduce the pinning potential at the junction and allow probing the magnetization locally. In addition, unusual metastable states with longitudinal domain walls along Py straight sections are observed. Micromagnetic simulations in combination with a magnetotransport model allow interpretation of the results and identification of the observed transitions.https://doi.org/10.1038/s41598-017-06292-y |
| spellingShingle | Héctor Corte-León Patryk Krzysteczko Alessandra Manzin Hans Werner Schumacher Vladimir Antonov Olga Kazakova Hybrid normal metal/ferromagnetic nanojunctions for domain wall tracking Scientific Reports |
| title | Hybrid normal metal/ferromagnetic nanojunctions for domain wall tracking |
| title_full | Hybrid normal metal/ferromagnetic nanojunctions for domain wall tracking |
| title_fullStr | Hybrid normal metal/ferromagnetic nanojunctions for domain wall tracking |
| title_full_unstemmed | Hybrid normal metal/ferromagnetic nanojunctions for domain wall tracking |
| title_short | Hybrid normal metal/ferromagnetic nanojunctions for domain wall tracking |
| title_sort | hybrid normal metal ferromagnetic nanojunctions for domain wall tracking |
| url | https://doi.org/10.1038/s41598-017-06292-y |
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