Manipulation of the Martensitic Transformation and Exchange Bias Effect in the Ni<sub>45</sub>Co<sub>5</sub>Mn<sub>37</sub>In<sub>13</sub> Ferromagnetic Shape Memory Alloy Films
The martensitic phase transition and exchange bias effect of the Ni-Mn-based ferromagnetic shape memory alloys (FSMAs) Ni<sub>45</sub>Co<sub>5</sub>Mn<sub>37</sub>In<sub>13</sub> (Ni-Co-Mn-In) films are investigated in this paper. The martensitic trans...
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MDPI AG
2023-02-01
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| Series: | Magnetochemistry |
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| author | Jiahong Wen Bochu Yang Zhichao Dong Yaxin Yan Xiaoyu Zhao |
| author_facet | Jiahong Wen Bochu Yang Zhichao Dong Yaxin Yan Xiaoyu Zhao |
| author_sort | Jiahong Wen |
| collection | DOAJ |
| description | The martensitic phase transition and exchange bias effect of the Ni-Mn-based ferromagnetic shape memory alloys (FSMAs) Ni<sub>45</sub>Co<sub>5</sub>Mn<sub>37</sub>In<sub>13</sub> (Ni-Co-Mn-In) films are investigated in this paper. The martensitic transformation properties of the Ni-Co-Mn-In alloy target material are manipulated by the process of electric arc melting, melt-fast quenching, and high-temperature thermal pressure. The Ni-Co-Mn-In alloy films with martensite phase transition characteristics are obtained by adjusting deposition parameters on the (001) MgO substrate, which shows a significant exchange bias (EB) effect at different temperatures. With increasing sputtering power and time, the film thickness increases, resulting in a gradual relaxation of the constraints at the interface between the film and the substrate (the interfacial strain decreases as the increase of thin film thickness), which promotes the martensite phase transition. Between zero-field cooling (ZFC) and field-cooled (FC) curve obvious division zone, the decrease of exchange bias field (H<sub>EB</sub>) and coercive force field (H<sub>c</sub>) with an increase in test temperature is due to ferromagnetic (FM) interaction begins to dominate, resulting in a reduction of antiferromagnetic (AFM) anisotropy at the interface. The maximal H<sub>EB</sub> and H<sub>c</sub> reach ~465.7 Oe and ~306.9 Oe at 5 K, respectively. The manipulation of the martensitic transformation and EB effect of the Ni-Co-Mn-In alloy films demonstrates potential application in the field of information and spintronics. |
| first_indexed | 2024-03-11T08:31:29Z |
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| last_indexed | 2024-03-11T08:31:29Z |
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| series | Magnetochemistry |
| spelling | doaj.art-5e6ee4cc43df45709422d6385f83291d2023-11-16T21:47:06ZengMDPI AGMagnetochemistry2312-74812023-02-01925110.3390/magnetochemistry9020051Manipulation of the Martensitic Transformation and Exchange Bias Effect in the Ni<sub>45</sub>Co<sub>5</sub>Mn<sub>37</sub>In<sub>13</sub> Ferromagnetic Shape Memory Alloy FilmsJiahong Wen0Bochu Yang1Zhichao Dong2Yaxin Yan3Xiaoyu Zhao4The College of Electronics and Information, Hangzhou Dianzi University, Hangzhou 310018, ChinaThe College of Electronics and Information, Hangzhou Dianzi University, Hangzhou 310018, ChinaCollege of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou 310018, ChinaThe College of Electronics and Information, Hangzhou Dianzi University, Hangzhou 310018, ChinaCollege of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou 310018, ChinaThe martensitic phase transition and exchange bias effect of the Ni-Mn-based ferromagnetic shape memory alloys (FSMAs) Ni<sub>45</sub>Co<sub>5</sub>Mn<sub>37</sub>In<sub>13</sub> (Ni-Co-Mn-In) films are investigated in this paper. The martensitic transformation properties of the Ni-Co-Mn-In alloy target material are manipulated by the process of electric arc melting, melt-fast quenching, and high-temperature thermal pressure. The Ni-Co-Mn-In alloy films with martensite phase transition characteristics are obtained by adjusting deposition parameters on the (001) MgO substrate, which shows a significant exchange bias (EB) effect at different temperatures. With increasing sputtering power and time, the film thickness increases, resulting in a gradual relaxation of the constraints at the interface between the film and the substrate (the interfacial strain decreases as the increase of thin film thickness), which promotes the martensite phase transition. Between zero-field cooling (ZFC) and field-cooled (FC) curve obvious division zone, the decrease of exchange bias field (H<sub>EB</sub>) and coercive force field (H<sub>c</sub>) with an increase in test temperature is due to ferromagnetic (FM) interaction begins to dominate, resulting in a reduction of antiferromagnetic (AFM) anisotropy at the interface. The maximal H<sub>EB</sub> and H<sub>c</sub> reach ~465.7 Oe and ~306.9 Oe at 5 K, respectively. The manipulation of the martensitic transformation and EB effect of the Ni-Co-Mn-In alloy films demonstrates potential application in the field of information and spintronics.https://www.mdpi.com/2312-7481/9/2/51ferromagnetic shape memory alloysmagnetic phase change Ni-Co-Mn-In alloy filmexchange bias effect |
| spellingShingle | Jiahong Wen Bochu Yang Zhichao Dong Yaxin Yan Xiaoyu Zhao Manipulation of the Martensitic Transformation and Exchange Bias Effect in the Ni<sub>45</sub>Co<sub>5</sub>Mn<sub>37</sub>In<sub>13</sub> Ferromagnetic Shape Memory Alloy Films Magnetochemistry ferromagnetic shape memory alloys magnetic phase change Ni-Co-Mn-In alloy film exchange bias effect |
| title | Manipulation of the Martensitic Transformation and Exchange Bias Effect in the Ni<sub>45</sub>Co<sub>5</sub>Mn<sub>37</sub>In<sub>13</sub> Ferromagnetic Shape Memory Alloy Films |
| title_full | Manipulation of the Martensitic Transformation and Exchange Bias Effect in the Ni<sub>45</sub>Co<sub>5</sub>Mn<sub>37</sub>In<sub>13</sub> Ferromagnetic Shape Memory Alloy Films |
| title_fullStr | Manipulation of the Martensitic Transformation and Exchange Bias Effect in the Ni<sub>45</sub>Co<sub>5</sub>Mn<sub>37</sub>In<sub>13</sub> Ferromagnetic Shape Memory Alloy Films |
| title_full_unstemmed | Manipulation of the Martensitic Transformation and Exchange Bias Effect in the Ni<sub>45</sub>Co<sub>5</sub>Mn<sub>37</sub>In<sub>13</sub> Ferromagnetic Shape Memory Alloy Films |
| title_short | Manipulation of the Martensitic Transformation and Exchange Bias Effect in the Ni<sub>45</sub>Co<sub>5</sub>Mn<sub>37</sub>In<sub>13</sub> Ferromagnetic Shape Memory Alloy Films |
| title_sort | manipulation of the martensitic transformation and exchange bias effect in the ni sub 45 sub co sub 5 sub mn sub 37 sub in sub 13 sub ferromagnetic shape memory alloy films |
| topic | ferromagnetic shape memory alloys magnetic phase change Ni-Co-Mn-In alloy film exchange bias effect |
| url | https://www.mdpi.com/2312-7481/9/2/51 |
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