AI Article Synopsis
- The study investigates the spin configurations around the transition between single-domain and vortex states in isolated magnetic nanoparticles, specifically focusing on Fe single-crystalline nanocubes.
- By using methods like chemical synthesis, electron holography, and micromagnetic simulations, researchers created a phase diagram that maps these magnetic configurations based on size.
- They found that Fe nanocubes between 25 to 27 nm show a transition between single-domain and vortex states, and for the first time, they identified an intermediate spin configuration known as an ⟨111⟩ vortex.
Article Abstract
The different spin configurations in the vicinity of the single-domain/vortex transition are reported in isolated magnetic nanoparticles. By combining chemical synthesis, electron holography in a dedicated transmission electron microscope and micromagnetic simulations, we establish the "magnetic configurations vs size" phase diagram of Fe single-crystalline nanocubes. Room temperature high resolution magnetic maps reveal the transition between single-domain and vortex states for Fe nanocubes from 25 to 27 nm, respectively. An intermediate spin configuration consisting of an ⟨111⟩ vortex is for the first time evidenced.
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| http://dx.doi.org/10.1021/acs.nanolett.5b02892 | DOI Listing |
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