| About this Abstract |
| Meeting |
2021 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advanced Magnetic Materials for Energy and Power Conversion Applications
|
| Presentation Title |
In Pursuit of Antiskyrmions for Energy-Efficient Spintronics: Structural and Magnetic Characterization of Uniaxial [Pt/Co]-based C2v Thin Films |
| Author(s) |
Michael Dornu Kitcher, Marc De Graef, Vincent Sokalski |
| On-Site Speaker (Planned) |
Michael Dornu Kitcher |
| Abstract Scope |
Antiskyrmions and other unconventional magnetic objects are promising building blocks for energy-efficient spintronics. These spin textures can potentially be supported in low-symmetry ferromagnet–heavy metal (FM–HM) thin films where the Dresselhaus-type anisotropic Dzyaloshinskii-Moriya interaction (aDMI) arises at FM–HM interfaces. Here, we present C2v Ag/Pt/Co–based films which could exhibit aDMI and novel magnetic textures. For prototypical Ag(110)/Pt(110)/Co/Pt films grown epitaxially on Si(110) single crystal substrates, 2θ–ω X-ray diffraction and selected area electron diffraction revealed (10.0)-oriented hexagonal closed-packed (hcp) Co layers. Moreover, strong in-plane uniaxial anisotropy and crosstie domain walls were observed using alternating gradient field magnetometry and Lorentz transmission electron microscopy, respectively. To introduce DMI and explore its impact, we fabricated and characterized thinner symmetric and asymmetric Ag/Pt/[Co/Ni]x/Pt films. X-ray diffraction experiments suggest that the (10.0)-oriented hcp structure is preserved across Co/Ni layers. The structural and magnetic observations made are discussed along with their implications for aDMI. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Magnetic Materials, Characterization, Thin Films and Interfaces |