Role of Brownian motion and Néel relaxations in Mössbauer spectra of magnetic liquids
The absorption cross-section of Mössbauer radiation in magnetic liquids is calculated, taking into consideration both translational and rotational Brownian motion of magnetic nanoparticles as well as stochastic reversals of their magnetization in the absence of an external magnetic field. The role o...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Institute for Nuclear Research, National Academy of Sciences of Ukraine
2024-09-01
|
| Series: | Ядерна фізика та енергетика |
| Subjects: | |
| Online Access: | https://jnpae.kinr.kyiv.ua/25.3/Articles_PDF/jnpae-2024-25-0241-Dzyublik.pdf |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850229852125265920 |
|---|---|
| author | A. Ya. Dzyublik I. E. Anokhin V. Yu. Spivak |
| author_facet | A. Ya. Dzyublik I. E. Anokhin V. Yu. Spivak |
| author_sort | A. Ya. Dzyublik |
| collection | DOAJ |
| description | The absorption cross-section of Mössbauer radiation in magnetic liquids is calculated, taking into consideration both translational and rotational Brownian motion of magnetic nanoparticles as well as stochastic reversals of their magnetization in the absence of an external magnetic field. The role of Brownian motion in ferrofluids is considered in the framework of the diffusion theory, while for the magnetorheological fluids with large nanoparticles, it is done with the aid of Langevin's approach. For stochastic rotation, we derived the equation analogous to Langevin's one and found the corresponding correlation function. In both cases, simple rotational correlation functions are obtained in the approximation of small rotations during the lifetime of the excited Mossbauer nuclei. Influence of the Néel's relaxations is considered in the framework of the Blume - Tjon model. |
| format | Article |
| id | doaj-art-e5e668cb5a894a8ba6a392289337ef64 |
| institution | OA Journals |
| issn | 1818-331X 2074-0565 |
| language | English |
| publishDate | 2024-09-01 |
| publisher | Institute for Nuclear Research, National Academy of Sciences of Ukraine |
| record_format | Article |
| series | Ядерна фізика та енергетика |
| spelling | doaj-art-e5e668cb5a894a8ba6a392289337ef642025-08-20T02:04:03ZengInstitute for Nuclear Research, National Academy of Sciences of UkraineЯдерна фізика та енергетика1818-331X2074-05652024-09-01253241250https://doi.org/10.15407/jnpae2024.03.241Role of Brownian motion and Néel relaxations in Mössbauer spectra of magnetic liquidsA. Ya. Dzyublik0I. E. Anokhin1V. Yu. Spivak2Institute for Nuclear Research, National Academy of Sciences of Ukraine, Kyiv, UkraineInstitute for Nuclear Research, National Academy of Sciences of Ukraine, Kyiv, UkraineInstitute for Nuclear Research, National Academy of Sciences of Ukraine, Kyiv, UkraineThe absorption cross-section of Mössbauer radiation in magnetic liquids is calculated, taking into consideration both translational and rotational Brownian motion of magnetic nanoparticles as well as stochastic reversals of their magnetization in the absence of an external magnetic field. The role of Brownian motion in ferrofluids is considered in the framework of the diffusion theory, while for the magnetorheological fluids with large nanoparticles, it is done with the aid of Langevin's approach. For stochastic rotation, we derived the equation analogous to Langevin's one and found the corresponding correlation function. In both cases, simple rotational correlation functions are obtained in the approximation of small rotations during the lifetime of the excited Mossbauer nuclei. Influence of the Néel's relaxations is considered in the framework of the Blume - Tjon model.https://jnpae.kinr.kyiv.ua/25.3/Articles_PDF/jnpae-2024-25-0241-Dzyublik.pdfmössbauer effectferromagnetic nanoparticlesbrownian motionnéel relaxations. |
| spellingShingle | A. Ya. Dzyublik I. E. Anokhin V. Yu. Spivak Role of Brownian motion and Néel relaxations in Mössbauer spectra of magnetic liquids Ядерна фізика та енергетика mössbauer effect ferromagnetic nanoparticles brownian motion néel relaxations. |
| title | Role of Brownian motion and Néel relaxations in Mössbauer spectra of magnetic liquids |
| title_full | Role of Brownian motion and Néel relaxations in Mössbauer spectra of magnetic liquids |
| title_fullStr | Role of Brownian motion and Néel relaxations in Mössbauer spectra of magnetic liquids |
| title_full_unstemmed | Role of Brownian motion and Néel relaxations in Mössbauer spectra of magnetic liquids |
| title_short | Role of Brownian motion and Néel relaxations in Mössbauer spectra of magnetic liquids |
| title_sort | role of brownian motion and neel relaxations in mossbauer spectra of magnetic liquids |
| topic | mössbauer effect ferromagnetic nanoparticles brownian motion néel relaxations. |
| url | https://jnpae.kinr.kyiv.ua/25.3/Articles_PDF/jnpae-2024-25-0241-Dzyublik.pdf |
| work_keys_str_mv | AT ayadzyublik roleofbrownianmotionandneelrelaxationsinmossbauerspectraofmagneticliquids AT ieanokhin roleofbrownianmotionandneelrelaxationsinmossbauerspectraofmagneticliquids AT vyuspivak roleofbrownianmotionandneelrelaxationsinmossbauerspectraofmagneticliquids |