Comparative study on GMI properties of Co-based microwires improved by alcohol and liquid nitrogen medium-current annealing
This work comparatively investigates the influence of alcohol and liquid nitrogen medium-current annealing on GMI effect of rotated-dipping Co-based microwires. The temperature field distribution of Co-based microwires during current-annealing process is accordingly simulated, further to acquire exp...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2021-01-01
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| Series: | Materials Research Express |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/2053-1591/ac045e |
| _version_ | 1797746526419681280 |
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| author | Rui Liu Guanyu Cao Jingshun Liu Ze Li Yun Zhang Zetian Liu |
| author_facet | Rui Liu Guanyu Cao Jingshun Liu Ze Li Yun Zhang Zetian Liu |
| author_sort | Rui Liu |
| collection | DOAJ |
| description | This work comparatively investigates the influence of alcohol and liquid nitrogen medium-current annealing on GMI effect of rotated-dipping Co-based microwires. The temperature field distribution of Co-based microwires during current-annealing process is accordingly simulated, further to acquire experimental parameters of annealing current. Experimental results indicate that, GMI characteristics of current-annealed microwires in mentioned two mediums are both significantly improved, and GMI ratio [Δ Z / Z _max ] _max and magnetic field response sensitivity ξ _max of alcohol-medium current-annealed microwires increase more observable. When the excitation current frequency f = 3 MHz, [Δ Z / Z _max ] _max and ξ _max of microwires annealed by alcohol medium at 300 mA can reach 240.8% and 78.7%/Oe, respectively. During different type medium-current annealing, the higher-intensity annealing current can generate a larger circular magnetic field, which can effectively regulate the magnetic domain structure of Co-based microwires, so that, they tend to arrange densely and orderly, and the domain walls become much clearer. Meanwhile, the circular permeability μ _φ of microwires is significantly improved, thereby enhancing their GMI characteristics. Accordingly, the medium-current annealed Co-based microwires can be used as a typically sensitive material to provide technical support for the potential application of micromagnetic measurement field. |
| first_indexed | 2024-03-12T15:38:05Z |
| format | Article |
| id | doaj.art-3b1e234635e841dcae05cf3153a192ce |
| institution | Directory Open Access Journal |
| issn | 2053-1591 |
| language | English |
| last_indexed | 2024-03-12T15:38:05Z |
| publishDate | 2021-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Materials Research Express |
| spelling | doaj.art-3b1e234635e841dcae05cf3153a192ce2023-08-09T16:06:07ZengIOP PublishingMaterials Research Express2053-15912021-01-018606520210.1088/2053-1591/ac045eComparative study on GMI properties of Co-based microwires improved by alcohol and liquid nitrogen medium-current annealingRui Liu0Guanyu Cao1Jingshun Liu2https://orcid.org/0000-0003-1969-3639Ze Li3Yun Zhang4Zetian Liu5School of Materials Science and Engineering, Inner Mongolia University of Technology , Hohhot, 010051, People’s Republic of ChinaSchool of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, People’s Republic of ChinaSchool of Materials Science and Engineering, Inner Mongolia University of Technology , Hohhot, 010051, People’s Republic of ChinaSchool of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, People’s Republic of ChinaInstrumentation Engineering Faculty, Belarusian National Technical University , Minsk 220013, BelarusSchool of Materials Science and Engineering, Inner Mongolia University of Technology , Hohhot, 010051, People’s Republic of ChinaThis work comparatively investigates the influence of alcohol and liquid nitrogen medium-current annealing on GMI effect of rotated-dipping Co-based microwires. The temperature field distribution of Co-based microwires during current-annealing process is accordingly simulated, further to acquire experimental parameters of annealing current. Experimental results indicate that, GMI characteristics of current-annealed microwires in mentioned two mediums are both significantly improved, and GMI ratio [Δ Z / Z _max ] _max and magnetic field response sensitivity ξ _max of alcohol-medium current-annealed microwires increase more observable. When the excitation current frequency f = 3 MHz, [Δ Z / Z _max ] _max and ξ _max of microwires annealed by alcohol medium at 300 mA can reach 240.8% and 78.7%/Oe, respectively. During different type medium-current annealing, the higher-intensity annealing current can generate a larger circular magnetic field, which can effectively regulate the magnetic domain structure of Co-based microwires, so that, they tend to arrange densely and orderly, and the domain walls become much clearer. Meanwhile, the circular permeability μ _φ of microwires is significantly improved, thereby enhancing their GMI characteristics. Accordingly, the medium-current annealed Co-based microwires can be used as a typically sensitive material to provide technical support for the potential application of micromagnetic measurement field.https://doi.org/10.1088/2053-1591/ac045eCo-based microwiresmedium-current annealingGMI effectmagnetic domain structurecircular permeability |
| spellingShingle | Rui Liu Guanyu Cao Jingshun Liu Ze Li Yun Zhang Zetian Liu Comparative study on GMI properties of Co-based microwires improved by alcohol and liquid nitrogen medium-current annealing Materials Research Express Co-based microwires medium-current annealing GMI effect magnetic domain structure circular permeability |
| title | Comparative study on GMI properties of Co-based microwires improved by alcohol and liquid nitrogen medium-current annealing |
| title_full | Comparative study on GMI properties of Co-based microwires improved by alcohol and liquid nitrogen medium-current annealing |
| title_fullStr | Comparative study on GMI properties of Co-based microwires improved by alcohol and liquid nitrogen medium-current annealing |
| title_full_unstemmed | Comparative study on GMI properties of Co-based microwires improved by alcohol and liquid nitrogen medium-current annealing |
| title_short | Comparative study on GMI properties of Co-based microwires improved by alcohol and liquid nitrogen medium-current annealing |
| title_sort | comparative study on gmi properties of co based microwires improved by alcohol and liquid nitrogen medium current annealing |
| topic | Co-based microwires medium-current annealing GMI effect magnetic domain structure circular permeability |
| url | https://doi.org/10.1088/2053-1591/ac045e |
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