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Interfacial control of Dzyaloshinskii-Moriya interaction in heavy metal/ferromagnetic metal thin film heterostructures.
- Source :
-
Physical Review B . Nov2016, Vol. 94 Issue 18, p1-1. 1p. - Publication Year :
- 2016
-
Abstract
- The interfacial Dzyaloshinskii-Moriya interaction (DMI) in ultrathin magnetic thin film heterostructures provides a new approach for controlling spin textures on mesoscopic length scales. Here we investigate the dependence of the interfacial DMI constant D on a Pt wedge insertion layer in Ta/CoFeB/Pt(wedge)/MgO thin films by observing the asymmetric spin-wave dispersion using Brillouin light scattering. Continuous tuning of D by more than a factor of 3 is realized by inserting less than one monolayer of Pt. The observations provide new insights for designing magnetic thin film heterostructures with tailored D for controlling skyrmions and magnetic domain-wall chirality and dynamics. [ABSTRACT FROM AUTHOR]
- Subjects :
- *MAGNETIC properties of thin films
*BRILLOUIN scattering
Subjects
Details
- Language :
- English
- ISSN :
- 24699950
- Volume :
- 94
- Issue :
- 18
- Database :
- Academic Search Index
- Journal :
- Physical Review B
- Publication Type :
- Academic Journal
- Accession number :
- 120166678
- Full Text :
- https://doi.org/10.1103/PhysRevB.94.180408