Compositional Dependence of Magnetocrystalline Anisotropy in Fe-, Co-, and Cu-Alloyed Ni-Mn-Ga
The key for the existence of magnetic induced reorientation is strong magnetocrystalline anisotropy, i.e., the coupling between ferroelastic and ferromagnetic ordering. To increase the transformation temperatures and thus functionality, various elemental alloying in Ni-Mn-Ga is tried. We analyzed mo...
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MDPI AG
2022-01-01
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| Online Access: | https://www.mdpi.com/2075-4701/12/1/133 |
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| author | Michal Rameš Vít Kopecký Oleg Heczko |
| author_facet | Michal Rameš Vít Kopecký Oleg Heczko |
| author_sort | Michal Rameš |
| collection | DOAJ |
| description | The key for the existence of magnetic induced reorientation is strong magnetocrystalline anisotropy, i.e., the coupling between ferroelastic and ferromagnetic ordering. To increase the transformation temperatures and thus functionality, various elemental alloying in Ni-Mn-Ga is tried. We analyzed more than twenty polycrystalline alloys alloyed by small amount (up to 5atom%) of transitional metals Co, Fe, Ni, and Cu for the value of magnetic anisotropy in search of general trends with alloying. In agreement with previous reports, we found that maximum anisotropy occurs at stoichiometric Ni<sub>2</sub>MnGa and any alloying decreases its value. The strongest decrease of the anisotropy is observed in the case where the alloyed elements substitute Ga. |
| first_indexed | 2024-03-10T00:56:00Z |
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| id | doaj.art-accfbf98ca8c487c90dee1791c25b7dd |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-10T00:56:00Z |
| publishDate | 2022-01-01 |
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| spelling | doaj.art-accfbf98ca8c487c90dee1791c25b7dd2023-11-23T14:42:50ZengMDPI AGMetals2075-47012022-01-0112113310.3390/met12010133Compositional Dependence of Magnetocrystalline Anisotropy in Fe-, Co-, and Cu-Alloyed Ni-Mn-GaMichal Rameš0Vít Kopecký1Oleg Heczko2FZU—Institute of Physics of the Czech Academy of Sciences, Na Slovance 1999/2, 182 21 Prague, Czech RepublicFZU—Institute of Physics of the Czech Academy of Sciences, Na Slovance 1999/2, 182 21 Prague, Czech RepublicFZU—Institute of Physics of the Czech Academy of Sciences, Na Slovance 1999/2, 182 21 Prague, Czech RepublicThe key for the existence of magnetic induced reorientation is strong magnetocrystalline anisotropy, i.e., the coupling between ferroelastic and ferromagnetic ordering. To increase the transformation temperatures and thus functionality, various elemental alloying in Ni-Mn-Ga is tried. We analyzed more than twenty polycrystalline alloys alloyed by small amount (up to 5atom%) of transitional metals Co, Fe, Ni, and Cu for the value of magnetic anisotropy in search of general trends with alloying. In agreement with previous reports, we found that maximum anisotropy occurs at stoichiometric Ni<sub>2</sub>MnGa and any alloying decreases its value. The strongest decrease of the anisotropy is observed in the case where the alloyed elements substitute Ga.https://www.mdpi.com/2075-4701/12/1/133magnetocrystalline anisotropymagnetic shape memory alloysNi-Mn-Ga |
| spellingShingle | Michal Rameš Vít Kopecký Oleg Heczko Compositional Dependence of Magnetocrystalline Anisotropy in Fe-, Co-, and Cu-Alloyed Ni-Mn-Ga Metals magnetocrystalline anisotropy magnetic shape memory alloys Ni-Mn-Ga |
| title | Compositional Dependence of Magnetocrystalline Anisotropy in Fe-, Co-, and Cu-Alloyed Ni-Mn-Ga |
| title_full | Compositional Dependence of Magnetocrystalline Anisotropy in Fe-, Co-, and Cu-Alloyed Ni-Mn-Ga |
| title_fullStr | Compositional Dependence of Magnetocrystalline Anisotropy in Fe-, Co-, and Cu-Alloyed Ni-Mn-Ga |
| title_full_unstemmed | Compositional Dependence of Magnetocrystalline Anisotropy in Fe-, Co-, and Cu-Alloyed Ni-Mn-Ga |
| title_short | Compositional Dependence of Magnetocrystalline Anisotropy in Fe-, Co-, and Cu-Alloyed Ni-Mn-Ga |
| title_sort | compositional dependence of magnetocrystalline anisotropy in fe co and cu alloyed ni mn ga |
| topic | magnetocrystalline anisotropy magnetic shape memory alloys Ni-Mn-Ga |
| url | https://www.mdpi.com/2075-4701/12/1/133 |
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