Bibliographic Details
| Title: |
Magnetic interactions in compositionally modulated nanowire arrays. |
| Authors: |
Ester M Palmero1 epalmero@icmm.csic.es, Fanny Béron2, Cristina Bran1, Rafael P del Real1, Manuel Vázquez1 |
| Source: |
Nanotechnology. 10/28/2016, Vol. 27 Issue 43, p1-1. 1p. |
| Subject Terms: |
*NANOWIRES, *ELECTROPLATING, *ALUMINUM oxide, *FERROMAGNETIC materials, *MAGNETOSTATICS, *ANISOTROPY, DESIGN & construction |
| Abstract: |
Series of high hexagonally ordered compositionally modulated nanowire arrays, with different Cu layer and FeCoCu segment thicknesses and a constant diameter of 35 nm, were fabricated by electroplating from a single electrolytic bath into anodic aluminum oxide membranes. The objective of the study was to determine the influence of ferromagnetic (FM) segment and non-ferromagnetic (NFM) layer thickness on the magnetic properties, particularly coercivity and magnetic interactions. First-order reversal curve (FORC) measurements and simulations were performed to quantify the effect of the inter-/intra-nanowire magnetostatic interactions on the coercivity and interaction field distributions. The FORC coercivity increases for a thick NFM layer and long FM segments due to decoupling of the the FM segments and the increased shape anisotropy, respectively. On the other hand, the interaction field presents a parallel strong reduction for a thick NFM layer and thin FM segments, which is ascribed to a similar NFM/FM thickness ratio and degree of FM segment decoupling along the nanowire. [ABSTRACT FROM AUTHOR] |
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| Database: |
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