Direct imprinting of arbitrary spin textures using programmable structured light in a semiconductor two-dimensional electron gas
Fuente:
arXiv
Guardado en:
| Autores principales: | , , , , , , , |
|---|---|
| Formato: | Preprint |
| Publicado: |
2024
|
| Materias: | |
| Acceso en línea: | |
| Etiquetas: |
Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
|
| _version_ | 1866915269566267392 |
|---|---|
| author | Kikuchi, Keito Ishihara, Jun Hiyama, Miari Yamamoto, Sota Ohno, Yuzo Mori, Takachika Miyajima, Kensuke Kohda, Makoto |
| author_facet | Kikuchi, Keito Ishihara, Jun Hiyama, Miari Yamamoto, Sota Ohno, Yuzo Mori, Takachika Miyajima, Kensuke Kohda, Makoto |
| contents | Precise control of spatial spin structures, such as spin helices, is critical for advancing spintronic devices, particularly in non-volatile, low-power information storage and processing. Conventional techniques, including transient spin grating spectroscopy and spatial- and time-resolved Kerr rotation microscopy, are limited by fixed optical grating periods and uniform light polarization, respectively, which constrain the flexibility of spin helix generation. Here, we introduce a novel approach utilizing structured light to directly imprint spatial spin structures in a GaAs/AlGaAs quantum well. This method allows for the precise control over the wave number and configuration of the spin helices, overcoming the limitations of previous techniques. Experiments conducted using pump-probe Kerr rotation microscopy combined with a programmable spatial light modulator revealed the efficient and tunable generation of spin helices. This approach is broadly applicable not only to semiconductors but also to magnetic thin films and 2D materials. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2411_10963 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Direct imprinting of arbitrary spin textures using programmable structured light in a semiconductor two-dimensional electron gas Kikuchi, Keito Ishihara, Jun Hiyama, Miari Yamamoto, Sota Ohno, Yuzo Mori, Takachika Miyajima, Kensuke Kohda, Makoto Mesoscale and Nanoscale Physics Precise control of spatial spin structures, such as spin helices, is critical for advancing spintronic devices, particularly in non-volatile, low-power information storage and processing. Conventional techniques, including transient spin grating spectroscopy and spatial- and time-resolved Kerr rotation microscopy, are limited by fixed optical grating periods and uniform light polarization, respectively, which constrain the flexibility of spin helix generation. Here, we introduce a novel approach utilizing structured light to directly imprint spatial spin structures in a GaAs/AlGaAs quantum well. This method allows for the precise control over the wave number and configuration of the spin helices, overcoming the limitations of previous techniques. Experiments conducted using pump-probe Kerr rotation microscopy combined with a programmable spatial light modulator revealed the efficient and tunable generation of spin helices. This approach is broadly applicable not only to semiconductors but also to magnetic thin films and 2D materials. |
| title | Direct imprinting of arbitrary spin textures using programmable structured light in a semiconductor two-dimensional electron gas |
| topic | Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2411.10963 |