| About this Abstract |
| Meeting |
2021 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advanced Characterization Techniques for Quantifying and Modeling Deformation
|
| Presentation Title |
Magnetic Anisotropy and Stacking Faults in Ag/Pt/Co/Pt Multilayer Thin Films |
| Author(s) |
Yukun Liu, Michael Kitcher, Marc De Graef, Vincent Sokalski |
| On-Site Speaker (Planned) |
Yukun Liu |
| Abstract Scope |
Antiskyrmions can potentially exist in low-symmetry ferromagnet–heavy metal (FM–HM) thin films exhibiting perpendicular magnetic anisotropy by Dresselhaus-type anisotropic Dzyaloshinskii-Moriya interactions (aDMI) arising at the FM–HM interfaces. This work presents Ag/Pt/Co/Pt—a novel, prototypical multilayer system grown epitaxially on Si(110) substrates—and investigates its structural and magnetic properties. Measured 2θ-ω X-ray diffraction profiles indicate that despite the face-centered cubic (fcc) underlayers, Co grows as (10.0)-oriented hexagonal closed-packed (hcp) layers with stacking faults and a possible secondary fcc-Co phase. Stacking fault densities were determined from the broadening of related diffraction peaks obtained through X-ray reciprocal space q-scans. The calculated densities indicate a significant amount of stacking faults formed during the growth of Co, possibly alongside an early fcc–hcp transition. Using alternating gradient field magnetometry, we observed in-plane uniaxial anisotropy along the c-axis within the ascertained Co(10.0) layers. Finally, implications for aDMI and antiskyrmion stability are highlighted. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Characterization, Magnetic Materials, Thin Films and Interfaces |