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

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

doi:10.1088/1361-6528/aa585f

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

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

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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 language	English (US)
Pages (from-to)	095709
Journal	Nanotechnology
Volume	28
Issue number	9
DOIs	https://doi.org/10.1088/1361-6528/aa585f
State	Published - Jan 31 2017

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: This work was supported by Ministerio de Economia y Competitividad (MINECO) (MAT2013-48054-C2-1-R and MAT2013-47078C2-2-P).

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title = "Co/Au multisegmented nanowires: a 3D array of magnetostatically coupled nanopillars",

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.",

author = "C. Bran and Ivanov, {Yurii P.} and J{\"u}rgen Kosel and O. Chubykalo-Fesenko and M. Vazquez",

note = "KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: This work was supported by Ministerio de Economia y Competitividad (MINECO) (MAT2013-48054-C2-1-R and MAT2013-47078C2-2-P).",

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AU - Bran, C.

AU - Ivanov, Yurii P.

AU - Kosel, Jürgen

AU - Chubykalo-Fesenko, O.

AU - Vazquez, M.

N1 - KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: This work was supported by Ministerio de Economia y Competitividad (MINECO) (MAT2013-48054-C2-1-R and MAT2013-47078C2-2-P).

PY - 2017/1/31

Y1 - 2017/1/31

N2 - 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.

AB - 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.

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UR - http://iopscience.iop.org/article/10.1088/1361-6528/aa585f

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U2 - 10.1088/1361-6528/aa585f

DO - 10.1088/1361-6528/aa585f

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SP - 095709

JO - Nanotechnology

JF - Nanotechnology

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ER -

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

Abstract

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