The capabilities of radiofrequency pulsed glow discharge time of flight mass spectrometry (rf-pulsed-GD-TOFMS) for the analysis of thin film composite membranes have been investigated in this work.
Magnetic properties of as-prepared (sputtered) and annealed FexSi1-x (0.64 ≤ x ≤ 0.78) amorphous films deposited at room temperature, are interpreted in terms of chemical short-range order and compared with evaporated films deposited at 77 K. Low temperature (≤ 30 K) magnetization behaviour follows ; M (T) / M (0) = 1 - BT3/2 - CT5/2 with B = 1.5 x 10-2 K-3/2 ; C = -2.610 x-4 K-5/2. Related spin wave stiffness constant is D = 0.9 meV Å2
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