Giant magnetoresistance (GMR) is often studied in multilayers (MLs) composed of mutually immiscible pairs of metals. Low miscibility is expected also in Fe/W and Co/W couples where the heat of compound formation is ΔH ~0. Therefore, the GMR in these types of MLs was studied in this work. The MLs were UHVe-beam deposited onto Si, number of periods being 5 or 10. The substrate temperature was kept between 70 and 2008C. The layer thicknesses of Fe, Co and W were between 1 and 7 nm, resulting in different designs. The samples were analyzed by the X-ray diffraction, X-ray reflectivity and grazing incidence X-ray diffuse scattering. The GMR was measured in the field <5 T.
Giant Magnetoresistance in Evaporated Nanometer Scale Fe/W and Co/W Multilayers
D'ANNA, Emilia;LUCHES, Armando;MARTINO, Maurizio
2005-01-01
Abstract
Giant magnetoresistance (GMR) is often studied in multilayers (MLs) composed of mutually immiscible pairs of metals. Low miscibility is expected also in Fe/W and Co/W couples where the heat of compound formation is ΔH ~0. Therefore, the GMR in these types of MLs was studied in this work. The MLs were UHVe-beam deposited onto Si, number of periods being 5 or 10. The substrate temperature was kept between 70 and 2008C. The layer thicknesses of Fe, Co and W were between 1 and 7 nm, resulting in different designs. The samples were analyzed by the X-ray diffraction, X-ray reflectivity and grazing incidence X-ray diffuse scattering. The GMR was measured in the field <5 T.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
