Universal critical exponents of the magnetic domain wall depinning transition
Magnetic-field-driven domain wall dynamics in a ferrimagnetic GdFeCo thin film with perpendicular magnetic anisotropy is studied using low-temperature magneto-optical Kerr microscopy. Measurements performed in a practically athermal condition allow for the direct experimental determination of the ve...
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| Veröffentlicht in: | Physical review. B 2021-08, Vol.104 (6), Article L060404 |
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| container_issue | 6 |
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| container_title | Physical review. B |
| container_volume | 104 |
| creator | Albornoz, L. J. Ferrero, E. E. Kolton, A. B. Jeudy, V. Bustingorry, S. Curiale, J. |
| description | Magnetic-field-driven domain wall dynamics in a ferrimagnetic GdFeCo thin film with perpendicular magnetic anisotropy is studied using low-temperature magneto-optical Kerr microscopy. Measurements performed in a practically athermal condition allow for the direct experimental determination of the velocity (β = 0.30 ± 0.03) and correlation length (ν = 1.3 ± 0.3) exponents of the depinning transition. The whole family of exponents characterizing the transition is deduced, providing evidence that the depinning of magnetic domain walls is better described by the quenched Edwards-Wilkinson universality class. |
| doi_str_mv | 10.1103/PhysRevB.104.L060404 |
| format | Article |
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| source | American Physical Society Journals |
| subjects | Condensed Matter Disordered Systems and Neural Networks Domain walls Exponents Low temperature Magnetic anisotropy Magnetic domains Materials Science Physics Soft Condensed Matter Statistical Mechanics Thin films |
| title | Universal critical exponents of the magnetic domain wall depinning transition |
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