Journal
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
Volume 379, Issue -, Pages 239-243Publisher
ELSEVIER
DOI: 10.1016/j.jmmm.2014.12.049
Keywords
Nano-magnets; Anodic alumina; AAO; Ni-Au nanowires; Shape anisotropy
Funding
- NSF [EEC-1160504]
- WIN center (UC Discovery program)
- WIN center (Intel)
- WIN center (NERC)
- DoD
- NSF MRSEC program
- DOE EFRC program through the Northwestern University Non-equilibrium Research Center
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Here we examine magnetic coupling in layered magnetic/nonmagnetic nanowires created using electrochemical deposition into nanoporous templates. By utilizing reproducible and tunable deposition methods, various aspect ratios and spacing between magnetic domains were created. Low aspect ratio disks were then coupled to high aspect ratio rods to control the mechanism for spin Hip in the disk component of the system. The orthogonal relationship between the magnetic easy axis of the disk and rod geometries creates a multistate system with both in-plane and out-of-plane easy axes by balancing magnetic shape anisotropy with dipole coupling between the two layers. (C) 2014 Elsevier B.V. All rights reserved.
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