Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Preprint |
| Published: |
2024
|
| Subjects: | |
| Online Access: | https://arxiv.org/abs/2401.08235 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866911758856224768 |
|---|---|
| author | Sánchez-Tejerina, Luis Ruiz, David Osuna Martínez, Eduardo Díaz, Luis López Alejos, Óscar |
| author_facet | Sánchez-Tejerina, Luis Ruiz, David Osuna Martínez, Eduardo Díaz, Luis López Alejos, Óscar |
| contents | Spin wave propagation along a ferrimagnetic strip with out-of-plane magnetization is studied by means of micromagnetic simulations. The ferrimagnetic material is considered as formed by two antiferromagnetically coupled sublattices. Two critical temperatures can be defined for such systems: that of magnetization compensation and that of angular momentum compensation, both different due to distinct Landé factors for each sub-lattice. Spin waves in the strip are excited by a spin current injected at one of its edges. The obtained dispersion diagrams show exchange-dominated forward volume spin waves. For a given excitation frequency, Néel vector describes highly eccentric orbits, the eccentricity depending on temperature, whose semi-major axis are oriented differently at distinct locations on the FiM strip. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2401_08235 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Spin Waves in Ferrimagnets near the Angular Magnetization Compensation Temperature: A Micromagnetic Study Sánchez-Tejerina, Luis Ruiz, David Osuna Martínez, Eduardo Díaz, Luis López Alejos, Óscar Materials Science Spin wave propagation along a ferrimagnetic strip with out-of-plane magnetization is studied by means of micromagnetic simulations. The ferrimagnetic material is considered as formed by two antiferromagnetically coupled sublattices. Two critical temperatures can be defined for such systems: that of magnetization compensation and that of angular momentum compensation, both different due to distinct Landé factors for each sub-lattice. Spin waves in the strip are excited by a spin current injected at one of its edges. The obtained dispersion diagrams show exchange-dominated forward volume spin waves. For a given excitation frequency, Néel vector describes highly eccentric orbits, the eccentricity depending on temperature, whose semi-major axis are oriented differently at distinct locations on the FiM strip. |
| title | Spin Waves in Ferrimagnets near the Angular Magnetization Compensation Temperature: A Micromagnetic Study |
| topic | Materials Science |
| url | https://arxiv.org/abs/2401.08235 |