About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Magnetism and Magnetic Materials
|
| Presentation Title |
Investigating Soft Magnetic Properties in Combinatorial AlxCrFeCoNi Thin Films for Artificial Spin Ice |
| Author(s) |
Md Imran Noor, Tibra Das Gupta, Aastha Vasdev, Michael Detisch, Lance De Long, William J. Gannon, Thomas John Balk, J. Todd Hastings, Paul F. Rottmann |
| On-Site Speaker (Planned) |
Md Imran Noor |
| Abstract Scope |
Artificial spin lattices (ASLs), composed of nanoscale ferromagnetic islands, are emerging as promising materials for advanced computing paradigms such as neuromorphic computing. While current ASLs typically use permalloy, high entropy alloys (HEAs) offer an intriguing alternative due to their potential for enhanced soft magnetic properties and swift magnetic fluctuations arising from inherent magnetic frustration. This study investigates magnetron sputtered combinatorial AlxCrFeCoNi thin films. Comprehensive characterization techniques including XRD, XPS, FIB-SEM and TEM were employed to analyze film structure and composition. A broadband FMR spectroscopy was used to assess Gilbert damping through resonance linewidth analysis. SQUID magnetometry was utilized to examine M-H hysteresis loops and M-T curves in zero-field cooling (ZFC) and field cooling (FC) states, providing insights into magnetization, coercive fields, and phase transition temperatures. This thorough evaluation offers valuable insights into the role of compositions in tuning the soft magnetic properties of HEAs for next-generation ASLs and computing applications. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
High-Entropy Alloys, Magnetic Materials, Characterization |