Effect of Annealing on the Magnetic Properties of Co<sub>2</sub>MnSi-Based Heusler Alloy Glass-Coated Microwires
In the current study, we concentrated on the influence of annealing on the magnetic behavior of Co<sub>2</sub>MnSi-based Heusler microwires. We set the annealing temperature at 1023 K for 2 h, as the sample did not show any significant changes in the magnetic properties at lower temperat...
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MDPI AG
2023-02-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/13/2/412 |
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| author | Mohamed Salaheldeen Mihail Ipatov Paula Corte-Leon Valentina Zhukova Arcady Zhukov |
| author_facet | Mohamed Salaheldeen Mihail Ipatov Paula Corte-Leon Valentina Zhukova Arcady Zhukov |
| author_sort | Mohamed Salaheldeen |
| collection | DOAJ |
| description | In the current study, we concentrated on the influence of annealing on the magnetic behavior of Co<sub>2</sub>MnSi-based Heusler microwires. We set the annealing temperature at 1023 K for 2 h, as the sample did not show any significant changes in the magnetic properties at lower temperatures, while annealing at temperatures above 1023 K damages the glass coating. Strong in-plane magnetocrystalline anisotropy parallel to the microwire axis was evident in the magnetic behavior at room temperature for as-prepared and annealed samples. The coercivity of the annealed sample was four times higher than that of the as-prepared sample across a wide range of measuring temperatures. Both annealed and as-prepared samples exhibit quite stable coercivity behavior with temperature, which may have interesting applications. The an nealed sample did not exhibit magnetic saturation for M-H loops measured below 50 K. Sharp irreversible magnetic behavior has been detected for annealed samples at a blocking temperature of 220 K; at the same time, the blocking temperature for the as-prepared sample was 150 K. The strong internal mechanical stress induced during the fabrication of Co<sub>2</sub>MnSi microwires in addition to the internal stress relaxation caused by the annealing induced the onset of magnetic phases resulting in unusual and irreversible magnetic behavior. |
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| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-11T08:25:03Z |
| publishDate | 2023-02-01 |
| publisher | MDPI AG |
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| spelling | doaj.art-4f72f796f78c42a5aa6c4aa5641dff912023-11-16T22:08:56ZengMDPI AGMetals2075-47012023-02-0113241210.3390/met13020412Effect of Annealing on the Magnetic Properties of Co<sub>2</sub>MnSi-Based Heusler Alloy Glass-Coated MicrowiresMohamed Salaheldeen0Mihail Ipatov1Paula Corte-Leon2Valentina Zhukova3Arcady Zhukov4Departamento de Polímeros y Materiales Avanzados, Facultad Química, Universidad del País Vasco, UPV/EHU, 20018 San Sebastián, SpainDepartamento de Polímeros y Materiales Avanzados, Facultad Química, Universidad del País Vasco, UPV/EHU, 20018 San Sebastián, SpainDepartamento de Polímeros y Materiales Avanzados, Facultad Química, Universidad del País Vasco, UPV/EHU, 20018 San Sebastián, SpainDepartamento de Polímeros y Materiales Avanzados, Facultad Química, Universidad del País Vasco, UPV/EHU, 20018 San Sebastián, SpainDepartamento de Polímeros y Materiales Avanzados, Facultad Química, Universidad del País Vasco, UPV/EHU, 20018 San Sebastián, SpainIn the current study, we concentrated on the influence of annealing on the magnetic behavior of Co<sub>2</sub>MnSi-based Heusler microwires. We set the annealing temperature at 1023 K for 2 h, as the sample did not show any significant changes in the magnetic properties at lower temperatures, while annealing at temperatures above 1023 K damages the glass coating. Strong in-plane magnetocrystalline anisotropy parallel to the microwire axis was evident in the magnetic behavior at room temperature for as-prepared and annealed samples. The coercivity of the annealed sample was four times higher than that of the as-prepared sample across a wide range of measuring temperatures. Both annealed and as-prepared samples exhibit quite stable coercivity behavior with temperature, which may have interesting applications. The an nealed sample did not exhibit magnetic saturation for M-H loops measured below 50 K. Sharp irreversible magnetic behavior has been detected for annealed samples at a blocking temperature of 220 K; at the same time, the blocking temperature for the as-prepared sample was 150 K. The strong internal mechanical stress induced during the fabrication of Co<sub>2</sub>MnSi microwires in addition to the internal stress relaxation caused by the annealing induced the onset of magnetic phases resulting in unusual and irreversible magnetic behavior.https://www.mdpi.com/2075-4701/13/2/412Heusler alloysglass-coated microwiresmagnetic propertiesannealingblocking temperature |
| spellingShingle | Mohamed Salaheldeen Mihail Ipatov Paula Corte-Leon Valentina Zhukova Arcady Zhukov Effect of Annealing on the Magnetic Properties of Co<sub>2</sub>MnSi-Based Heusler Alloy Glass-Coated Microwires Metals Heusler alloys glass-coated microwires magnetic properties annealing blocking temperature |
| title | Effect of Annealing on the Magnetic Properties of Co<sub>2</sub>MnSi-Based Heusler Alloy Glass-Coated Microwires |
| title_full | Effect of Annealing on the Magnetic Properties of Co<sub>2</sub>MnSi-Based Heusler Alloy Glass-Coated Microwires |
| title_fullStr | Effect of Annealing on the Magnetic Properties of Co<sub>2</sub>MnSi-Based Heusler Alloy Glass-Coated Microwires |
| title_full_unstemmed | Effect of Annealing on the Magnetic Properties of Co<sub>2</sub>MnSi-Based Heusler Alloy Glass-Coated Microwires |
| title_short | Effect of Annealing on the Magnetic Properties of Co<sub>2</sub>MnSi-Based Heusler Alloy Glass-Coated Microwires |
| title_sort | effect of annealing on the magnetic properties of co sub 2 sub mnsi based heusler alloy glass coated microwires |
| topic | Heusler alloys glass-coated microwires magnetic properties annealing blocking temperature |
| url | https://www.mdpi.com/2075-4701/13/2/412 |
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