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In this work the perturbed angular correlation technique is used to locally monitor the epitaxy and thermal stability of the hafnium layer in a Zr/Hf/Zr multilayer. The studies reveal that the system is highly homogeneous and presents high epitaxy. Measurements at high temperatures show that no HfOx formation occurs up to 562 K but at this temperature the Hf layer is no longer oxygen-defect free.
The nanocrystalline Fe33Ge67 alloy was prepared by mechanical alloying and its formation was followed by X-ray diffraction, 57Fe Mössbauer spectroscopy and magnetization techniques. The room-temperature Mössbauer spectra revealed the formation of a broad single line at the expense of the area of the α-Fe sextet. Combination of the measured room-temperature saturation magnetization values together...
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