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- W4283366452 abstract "• Co 60 Fe 20 B 20 thin films are grown by pulsed DC magnetron sputtering at different working gas pressure • Gilbert damping parameter and coercivity are sensitive to the working gas pressure • The working gas pressure critically influences both the surface roughness and growth rate • All the Co 60 Fe 20 B 20 thin films exhibited uniaxial magnetic anisotropy We present thorough investigation of the influence of Argon gas working pressure ( P A r ) on Co 60 Fe 20 B 20 (CFB) thin films deposited on Si. The longitudinal magneto-optic Kerr effect measurements indicate that all films exhibit uniaxial anisotropy caused by the self-steering effect arising due to the oblique angle deposition. The coercive field is found to be sensitive to P A r during growth and reached to a minimal value of 0.766 kA/m at 0.147 Pa. The ferromagnetic resonance measurements revealed that P A r has a direct impact on the inhomogeneous linewidth, anisotropy, and the effective Gilbert damping constant ( α e f f ) . The low value of α e f f ∼ ( 4.16 ± 0.10 ) × 10 − 3 is achieved in film grown at P A r ∼ 0.147 Pa with negligible inhomogeneity and low anisotropy . At this optimum value of P A r , the surface roughness of the films is found to be lowest (∼ 4 Å ). The observed changes in the static and dynamic magnetization properties in these CFB films on varying the P A r are correlated to the growth-rate-dependent changes in internal stress in the film. The choice of the value of P A r employed during sputtering of CFB films at room temperature is thus demonstrated as the simple control parameter for tuning its structural and magnetic properties for the development of spintronic memory applications." @default.
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- W4283366452 date "2022-08-01" @default.
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- W4283366452 title "Impact of Argon working pressure on the magnetic properties of sputtered Co60Fe20B20 thin films" @default.
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- W4283366452 doi "https://doi.org/10.1016/j.tsf.2022.139355" @default.
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