Co/Au multisegmented nanowires: a 3D array of magnetostatically coupled nanopillars

C. Bran, Yurii P. Ivanov, Jürgen Kosel, O. Chubykalo-Fesenko, M. Vazquez

Research output: Contribution to journalArticlepeer-review

19 Scopus citations

Abstract

Arrays of multisegmented Co/Au nanowires with designed segment lengths and diameters have been prepared by electrodeposition into aluminum oxide templates. The high quality of the Co/Au interface and the crystallographic structure of Co segments have determined by high-resolution transmission electron microscopy. Magnetic hysteresis loop measurements show larger coercivity and squareness of multisegmented nanowires as compared to single segment Co nanowires. The complementary micromagnetic simulations are in good agreement with the experimental results, confirming that the magnetic behavior is defined mainly by magnetostatic coupling between different segments. The proposed structure constitutes an innovative route towards a 3D array of synchronized magnetic nano-oscillators with large potential in nanoelectronics.
Original languageEnglish (US)
Pages (from-to)095709
JournalNanotechnology
Volume28
Issue number9
DOIs
StatePublished - Jan 31 2017

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