| Autor: |
Shulan Zuo, Kaiming Qiao, Ying Zhang, Zhuolin Li, Tongyun Zhao, Chengbao Jiang, Baogen Shen |
| Rok vydání: |
2022 |
| Předmět: |
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| Zdroj: |
Advanced science (Weinheim, Baden-Wurttemberg, Germany). |
| ISSN: |
2198-3844 |
| Popis: |
Nontrivial chiral spin textures with nanometric sizes and novel characteristics (e.g., magnetic skyrmions) are promising for encoding information bits in future energy-efficient and high-density spintronic devices. Because of antiferromagnetic exchange coupling, skyrmions in ferrimagnetic materials exhibit many advantages in terms of size and efficient manipulation, which allow them to overcome the limitations of ferromagnetic skyrmions. Despite recent progress, ferrimagnetic skyrmions have been observed only in few films in the presence of external fields, while those in ferrimagnetic bulks remain elusive. This study reports on spontaneously generated zero-field ground-state magnetic skyrmions and their subsequent transformation into traditional magnetic bubbles via intermediate states of (bi-)target bubbles during a magnetic anisotropy change in the rare-earth ferrimagnetic crystal DyFe |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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