Abstract
Multilayer films consisting of alternating Fe and Cu thin films have been made by a twin-gun sputtering device with a rotating substrate platform. Both proportional modulated films and films with a fixed Cu layer have been fabricated, where the Fe layer has been varied between 10 and 150 Å. These films have been studied by x-ray diffraction, Mö;ssbauer spectroscopy and SQUID magnetometry. Thin Fe layers with thicknesses less than 25 Å, exist only as fee α-Fe. Thicker Fe layers contain both bec and fee Fe. The interface between Fe and Cu appears very sharp with no evidence of Fe-Cu alloys. The α-Fe state orders magnetically below 100 K with a small magnetic moment.
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Liou, S.H., Xiao, G., Chien, C.L. et al. Multilayer Fe/Cu Films. MRS Online Proceedings Library 77, 697–702 (1986). https://doi.org/10.1557/PROC-77-697
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DOI: https://doi.org/10.1557/PROC-77-697