Table 2 Table showing the extracted (EA + Eint)/kB terms from the fits to the Néel-Brown equation, from which the measured interaction energies for the 6 nm thick set of samples are obtained.

From: Magnetization dynamics of weakly interacting sub-100 nm square artificial spin ices

Lattice Spacing

(EA + Eint)/kB

Interaction Energy

Computed Dipolar Energy (OOMMF)

138 nm

17100 ± 500 K

(19.5 ± 0.6) × 10−20 J

3.0442 × 10−20 J

175 nm

18500 ± 400 K

(21.4 ± 0.6) × 10−20 J

1.1186 × 10−20 J

208 nm

18500 ± 800 K

(21.0 ± 1.0) × 10−20 J

0.5430 × 10−20 J

  1. The dipolar interaction energies calculated via micromagnetic simulations are also shown.
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