Correlation between magnetic properties and depinning field in field-driven domain wall dynamics in GdFeCo ferrimagnets
| Autor: | Duck-Ho Kim, Hiroki Yoshikawa, Takahiro Moriyama, Yuushou Hirata, Tomoe Nishimura, Arata Tsukamoto, Yoichi Shiota, Takaya Okuno, Teruo Ono, Yasuhiro Futakawa |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Condensed Matter - Materials Science
Materials science Physics and Astronomy (miscellaneous) Condensed matter physics Field (physics) Perpendicular magnetic anisotropy Materials Science (cond-mat.mtrl-sci) FOS: Physical sciences 02 engineering and technology 021001 nanoscience & nanotechnology Condensed Matter::Disordered Systems and Neural Networks 01 natural sciences Domain wall (magnetism) Condensed Matter::Superconductivity 0103 physical sciences Condensed Matter::Statistical Mechanics Field in field Domain wall dynamics 010306 general physics 0210 nano-technology |
| Zdroj: | Applied Physics Letters. 112:172403 |
| ISSN: | 1077-3118 0003-6951 |
| Popis: | The influence of temperature on the magnetic-field-driven domain wall (DW) motion is investigated in GdFeCo ferrimagnets with perpendicular magnetic anisotropy (PMA). We find that the depinning field strongly depends on temperature. Moreover, it is also found that the saturation magnetization exhibits a similar dependence on temperature to that of depinning field. From the creep-scaling criticality, a simple relation between the depinning field and the properties of PMA is clearly identified theoretically as well as experimentally. Our findings open a way for a better understanding how the magnetic properties influence on the depinning field in magnetic system and would be valuably extended to depinning studies in other system. Comment: 18 pages,5 figures |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|