| Autor: |
Sajid Husain, Soumyarup Hait, Nilamani Behera, Sujeet Chaudhary, Vineet Barwal, Nanhe Kumar Gupta |
| Rok vydání: |
2020 |
| Předmět: |
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| Zdroj: |
DAE SOLID STATE PHYSICS SYMPOSIUM 2019. |
| ISSN: |
0094-243X |
| DOI: |
10.1063/5.0017134 |
| Popis: |
Structural and dynamic magnetization properties of Co2MnAl (CMA) full Heusler alloy thin films grown on Si (100) substrate at different substrate temperatures (Ts) 30°C, 200°C, 300°C, 400°C and 500°C are investigated. XRD patterns revealed the formation of B2 partially ordered phase at Ts=200°C and above. Ferromagnetic Resonance (FMR) technique have been used to determine the damping constant (α), resonance field (Hr) and line width (ΔH) of recorded spectra and fitted by using Landau-Lifshitz-Gilbert (LLG) equation. The lowest damping constant was found to be 0.007±0.002 for the film grown at Ts=200°C. Films exhibit uniaxial magnetic anisotropy. Anisotropic damping constant α is calculated along the easy and hard axis. Along the two directions remarkable change (almost ∼59%) in α is observed. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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