A new look on the two-dimensional Ising model: Thermal artificial spins
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Date
2016
Volume
18
Issue
2
Journal
New Journal of Physics
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Publisher
Milton Park : Taylor & Francis
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Abstract
We present a direct experimental investigation of the thermal ordering in an artificial analogue of an asymmetric two-dimensional Ising system composed of a rectangular array of nano-fabricated magnetostatically interacting islands. During fabrication and below a critical thickness of the magnetic material the islands are thermally fluctuating and thus the system is able to explore its phase space. Above the critical thickness the islands freeze-in resulting in an arrested thermalized state for the array. Determining the magnetic state we demonstrate a genuine artificial two-dimensional Ising system which can be analyzed in the context of nearest neighbor interactions.
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Citation
Arnalds, U. B., Chico, J., Stopfel, H., Kapaklis, V., Bärenbold, O., Verschuuren, M. A., et al. (2016). A new look on the two-dimensional Ising model: Thermal artificial spins (Milton Park : Taylor & Francis). Milton Park : Taylor & Francis. https://doi.org//10.1088/1367-2630/18/2/023008
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CC BY 3.0 Unported