Abstract
Co/Ni multilayers ordered according to a periodic, Fibonnacci and Thue Morse sequence have been obtained by Atomic Layer Deposition and a subsequent process of thermal reduction. The morphology of the multilayers was investigated by scanning electron microscopy, while longitudinal hysteresis curves were obtained by magneto-optical magnetometry of Kerr effect. The morphology of the films varies as a function of their sequence and thickness. Multilayers exhibit coercivities much higher than expected from samples synthesized with other methods. The control of the magnetic properties of multilayers, as a function of their sequence, may allow their use in spintronic devices.
Highlights
The concept of quasi-periodicity, defined as the property exhibited by a system that shows an irregular periodicity, was inaugurated by Bohr in 1926, when he investigated quasi-periodic functions [1]
Any further distribution of Co/Ni multilayers ordered according to a periodic, Fibonnacci and Thue Morse sequence have been this work must maintain obtained by Atomic Layer Deposition and a subsequent process of thermal reduction
Considering that this process has been used to reduce much more complex structures such as ferromagnetic nanotubes [30], that both x-rays and the measurement of magnetic properties allow us to clearly identify the variation that occurred after the thermal reduction process, we estimate that almost 100% of the cobalt oxide and nickel oxide are reduced to cobalt and nickel, respectively
Summary
E Saavedra , J P Burr, D Alburquenque, J L Palma, J M García-Martín and J Escrig. Any further distribution of Co/Ni multilayers ordered according to a periodic, Fibonnacci and Thue Morse sequence have been this work must maintain obtained by Atomic Layer Deposition and a subsequent process of thermal reduction. The attribution to the author(s) and the title of morphology of the multilayers was investigated by scanning electron microscopy, while longitudinal the work, journal citation and DOI. Hysteresis curves were obtained by magneto-optical magnetometry of Kerr effect. The morphology of the films varies as a function of their sequence and thickness. The control of the magnetic properties of multilayers, as a function of their sequence, may allow their use in spintronic devices
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