Asymmetric magnetic domain-wall motion by the Dzyaloshinskii-Moriya interaction
By Soong-Geun Je, Duck-Ho Kim, Sang-Cheol Yoo, B. Min, Kyung-Jin Lee, S. Choe. 2013
291 citations recorded by the source corpus.
We demonstrate here that ultrathin ferromagnetic Pt/Co/Pt films with perpendicular magnetic anisotropy exhibit a sizeable Dzyaloshinskii-Moriya interaction (DMI) effect. Such a DMI effect modifies the domain-wall (DW) energy density and consequently, results in an asymmetric DW expansion driven by an out-of-plane magnetic field under an in-plane magnetic field bias. From an analysis of the asymmetry, the DMI effect is estimated to be strong enough for the DW to remain in the N\'eel-type configuration in contrast to the general expectations of these materials. Our findings emphasize the critical role of the DMI effect on the DW dynamics as the underlying physics of the asymmetries that are often observed in spin-transfer-related phenomena.
Subfields: Atomic and Molecular Physics, and Optics, Condensed Matter Physics
View Paper: https://www.semanticscholar.org/paper/d4374e6d8d2df7d4163bd5c1813914b221f008d1
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In Atomic and Molecular Physics, and Optics
In Condensed Matter Physics
Citations in the corpus
- Perpendicular magnetic anisotropy at transition metal/oxide interfaces and applications (2017, unknown): “Their nonideal symmetry was revealed, for instance, by DMI measurements performed on these structures (Je et al., 2013; Hrabec et al., 2014) since otherwise theDMIcontributions from two interfaces would cancel out (Yang et al., 2015).”
- Skyrmions in magnetic multilayers (2017, methodology): “velocity, one can determine the effective DMI field ( HUVW ), which results in the determination of DMI strength based on the following [159, 160, 167, 169]:”