Вплив магнiтопружної взаємодiї на перший поперечний звук в феромагнетику кубiчної симетрiї в околi мартенситного перетворення
The dispersion laws of coupled magnetoelastic waves have been calculated for all ground states of a ferromagnet with the cubic symmetry. It is shown that the magnetoelastic interaction with the first transverse sound takes place for all equilibrium directions of the magnetization vector. The obtaine...
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| Date: | 2018 |
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| Main Author: | |
| Format: | Article |
| Language: | English Ukrainian |
| Published: |
Publishing house "Academperiodika"
2018
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| Subjects: | |
| Online Access: | https://ujp.bitp.kiev.ua/index.php/ujp/article/view/2018540 |
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| Journal Title: | Ukrainian Journal of Physics |
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Ukrainian Journal of Physics| Summary: | The dispersion laws of coupled magnetoelastic waves have been calculated for all ground states of a ferromagnet with the cubic symmetry. It is shown that the magnetoelastic interaction with the first transverse sound takes place for all equilibrium directions of the magnetization vector. The obtained dispersion laws testify that the magnetoelastic interaction coefficient depends on the magnetization and wave vector directions. The quantitative calculations of the dispersion relations for the shape memory alloy Ni–Mn–Ga are made on the basis of the obtained results. The results of research demonstrate that a decrease in the elastic modulus gives rise to an appreciably stronger magnetoelastic interaction. |
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