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Typical synchrotron XRD spectra of Fe-Co-W films annealed at with various W contents.
FWHM spread in the composition library of Fe-Co-W films of as-deposited state (a) annealed at (b) and annealed at (c).
TEM images of (a) crystallized region with 2.2% W concentrations with inset SAED demonstrating the crystalline state, (b) amorphous 17.9% W concentrations with inset SAED demonstrating the amorphous state, and (c) micron-sized crystalline W grains within the 34.7% W region which is primarily amorphous.
Typical out-of-plane and in plane hysteresis loops of low W concentrations (a) and high W concentrations (b), and angular dependence of inverse HS for low W concentrations (c), and high W concentrations (d). In (a) and (b), the IP and OOP denote the in-plane and out-of-plane M(H) loop with the magnetic field parallel and perpendicular to the film, respectively. In (c) and (d), the inset numbers refer to the W composition. The solid lines are from a linear fit. The arrows indicate the onset of the for the inverse HS to deviate from the linear dependence.
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