Probing ultrafast magnetization dynamics via synthetic axion fields
Fuente:
arXiv
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Preprint |
| Published: |
2024
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866929364322484224 |
|---|---|
| author | Shaposhnikov, Leon Barredo-Alamilla, Eduardo Wilczek, Frank Gorlach, Maxim A. |
| author_facet | Shaposhnikov, Leon Barredo-Alamilla, Eduardo Wilczek, Frank Gorlach, Maxim A. |
| contents | Spatial structuring of materials at subwavelength scales underlies the concept of metamaterials possessing exotic properties beyond those of the constituent media. Temporal modulation of material parameters enables further functionalities. Here, we show that high-frequency oscillations of spatially uniform magnetization generate an effective dynamic axion field embedding the amplitude and phase of magnetization oscillations. This allows one to map ultrafast magnetization dynamics using a probe signal with much lower frequency. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2405_19160 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Probing ultrafast magnetization dynamics via synthetic axion fields Shaposhnikov, Leon Barredo-Alamilla, Eduardo Wilczek, Frank Gorlach, Maxim A. Optics Mesoscale and Nanoscale Physics High Energy Physics - Phenomenology Spatial structuring of materials at subwavelength scales underlies the concept of metamaterials possessing exotic properties beyond those of the constituent media. Temporal modulation of material parameters enables further functionalities. Here, we show that high-frequency oscillations of spatially uniform magnetization generate an effective dynamic axion field embedding the amplitude and phase of magnetization oscillations. This allows one to map ultrafast magnetization dynamics using a probe signal with much lower frequency. |
| title | Probing ultrafast magnetization dynamics via synthetic axion fields |
| topic | Optics Mesoscale and Nanoscale Physics High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2405.19160 |