Changes in magnetic domain structure during twin boundary motion in single crystal Ni-Mn-Ga exhibiting magnetic shape memory effect
The complexity of Ni-Mn-Ga single crystal originates from the interplay between ferromagnetic domain structure and ferroelastic twinned microstructure. Magnetic domain structure in the vicinity of single twin boundary was studied using magneto-optical indicator film and magnetic force microscopy tec...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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AIP Publishing LLC
2016-05-01
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| Series: | AIP Advances |
| Online Access: | http://dx.doi.org/10.1063/1.4943363 |
| _version_ | 1818353554415419392 |
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| author | V. Kopecký L. Fekete O. Perevertov O. Heczko |
| author_facet | V. Kopecký L. Fekete O. Perevertov O. Heczko |
| author_sort | V. Kopecký |
| collection | DOAJ |
| description | The complexity of Ni-Mn-Ga single crystal originates from the interplay between ferromagnetic domain structure and ferroelastic twinned microstructure. Magnetic domain structure in the vicinity of single twin boundary was studied using magneto-optical indicator film and magnetic force microscopy technique. The single twin boundary of Type I was formed mechanically and an initial magnetization state in both variants were restored by local application of magnetic field (≈40 kA/m). The differently oriented variants exhibited either stripe or labyrinth magnetic domain pattern in agreement with the uniaxial magnetocrystalline anisotropy of the martensite. The twin boundary was then moved by compressive or tensile stress. The passage of the boundary resulted in the formation of granular or rake domains, respectively. Additionally, the specific magnetic domains pattern projected by twin boundary gradually vanished during twin boundary motion. |
| first_indexed | 2024-12-13T19:11:22Z |
| format | Article |
| id | doaj.art-91e167424ba24d35b0da4ce720441eb0 |
| institution | Directory Open Access Journal |
| issn | 2158-3226 |
| language | English |
| last_indexed | 2024-12-13T19:11:22Z |
| publishDate | 2016-05-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | AIP Advances |
| spelling | doaj.art-91e167424ba24d35b0da4ce720441eb02022-12-21T23:34:23ZengAIP Publishing LLCAIP Advances2158-32262016-05-0165056208056208-610.1063/1.4943363070691ADVChanges in magnetic domain structure during twin boundary motion in single crystal Ni-Mn-Ga exhibiting magnetic shape memory effectV. Kopecký0L. Fekete1O. Perevertov2O. Heczko3Department of Functional Materials, Institute of Physics ASCR, Na Slovance 1999/2, 182 21 Prague 8, Czech RepublicDepartment of Functional Materials, Institute of Physics ASCR, Na Slovance 1999/2, 182 21 Prague 8, Czech RepublicDepartment of Functional Materials, Institute of Physics ASCR, Na Slovance 1999/2, 182 21 Prague 8, Czech RepublicDepartment of Functional Materials, Institute of Physics ASCR, Na Slovance 1999/2, 182 21 Prague 8, Czech RepublicThe complexity of Ni-Mn-Ga single crystal originates from the interplay between ferromagnetic domain structure and ferroelastic twinned microstructure. Magnetic domain structure in the vicinity of single twin boundary was studied using magneto-optical indicator film and magnetic force microscopy technique. The single twin boundary of Type I was formed mechanically and an initial magnetization state in both variants were restored by local application of magnetic field (≈40 kA/m). The differently oriented variants exhibited either stripe or labyrinth magnetic domain pattern in agreement with the uniaxial magnetocrystalline anisotropy of the martensite. The twin boundary was then moved by compressive or tensile stress. The passage of the boundary resulted in the formation of granular or rake domains, respectively. Additionally, the specific magnetic domains pattern projected by twin boundary gradually vanished during twin boundary motion.http://dx.doi.org/10.1063/1.4943363 |
| spellingShingle | V. Kopecký L. Fekete O. Perevertov O. Heczko Changes in magnetic domain structure during twin boundary motion in single crystal Ni-Mn-Ga exhibiting magnetic shape memory effect AIP Advances |
| title | Changes in magnetic domain structure during twin boundary motion in single crystal Ni-Mn-Ga exhibiting magnetic shape memory effect |
| title_full | Changes in magnetic domain structure during twin boundary motion in single crystal Ni-Mn-Ga exhibiting magnetic shape memory effect |
| title_fullStr | Changes in magnetic domain structure during twin boundary motion in single crystal Ni-Mn-Ga exhibiting magnetic shape memory effect |
| title_full_unstemmed | Changes in magnetic domain structure during twin boundary motion in single crystal Ni-Mn-Ga exhibiting magnetic shape memory effect |
| title_short | Changes in magnetic domain structure during twin boundary motion in single crystal Ni-Mn-Ga exhibiting magnetic shape memory effect |
| title_sort | changes in magnetic domain structure during twin boundary motion in single crystal ni mn ga exhibiting magnetic shape memory effect |
| url | http://dx.doi.org/10.1063/1.4943363 |
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