Journal
APPLIED PHYSICS LETTERS
Volume 104, Issue 11, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4869092
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Funding
- Swiss National Science Foundation [PBEZP2-142894]
- Swiss National Science Foundation (SNF) [PBEZP2_142894] Funding Source: Swiss National Science Foundation (SNF)
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The magnetic anisotropy of linear chains of spherical magnetite nanocrystals was investigated by means of angle-resolved ferromagnetic resonance spectroscopy, in order to determine the different anisotropy contributions. The linear assembly of nanocrystals generates an interaction-induced uniaxial anisotropy, which is nearly an order of magnitude stronger than the intrinsic magnetocrystalline anisotropy of magnetite, and can only exist in magnetic nano-chains, where the easy axes of the nanocrystals are collinear. (C) 2014 AIP Publishing LLC.
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