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Nanomaterials 2017, 7(9), 232; doi:10.3390/nano7090232

Bi-Component Nanostructured Arrays of Co Dots Embedded in Ni80Fe20 Antidot Matrix: Synthesis by Self-Assembling of Polystyrene Nanospheres and Magnetic Properties

1
INRIM, Nanoscience and Materials Division, Strada delle Cacce 91, 10135 Torino, Italy
2
Chemistry Department, Università di Torino, via Pietro Giuria 7, 10125 Torino, Italy
*
Author to whom correspondence should be addressed.
Received: 28 July 2017 / Revised: 17 August 2017 / Accepted: 19 August 2017 / Published: 23 August 2017
(This article belongs to the Special Issue Multifunctional Metallic Nanomaterials)
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Abstract

A bi-component nanostructured system composed by a Co dot array embedded in a Ni80Fe20 antidot matrix has been prepared by means of the self-assembling polystyrene nanospheres lithography technique. Reference samples constituted by the sole Co dots or Ni80Fe20 antidots have also been prepared, in order to compare their properties with those of the bi-component material. The coupling between the two ferromagnetic elements has been studied by means of magnetic and magneto-transport measurements. The Ni80Fe20 matrix turned out to affect the vortex nucleation field of the Co dots, which in turn modifies the magneto-resistance behaviour of the system and its spinwave properties. View Full-Text
Keywords: bi-component nanostructured system; self-assembling; magnetic coupling bi-component nanostructured system; self-assembling; magnetic coupling
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MDPI and ACS Style

Coïsson, M.; Celegato, F.; Barrera, G.; Conta, G.; Magni, A.; Tiberto, P. Bi-Component Nanostructured Arrays of Co Dots Embedded in Ni80Fe20 Antidot Matrix: Synthesis by Self-Assembling of Polystyrene Nanospheres and Magnetic Properties. Nanomaterials 2017, 7, 232.

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