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Figure 1

From: Low Gilbert Damping Constant in Perpendicularly Magnetized W/CoFeB/MgO Films with High Thermal Stability

Figure 1

Room temperature magnetic hysteresis loops of W/CoFeB/MgO PMA thin films post-annealed at (a) 250 °C, (b) 300 °C, (c) 350 °C, and (d) 400 °C. Black and red curves denote external magnetic field (Hext) applied along and perpendicular to the film plane, respectively. (e–g) Plots of the effective saturation magnetization (Ms), the intrinsic saturation magnetization (i.e., excluding the effect of the dead layer, Ms,0), and the interfacial anisotropy (Ki) as functions of Tann.

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