Next, we have performed temperature‐dependent micromagnetic simulations on an artificial honeycomb lattice of similar element size and thickness to independently verify the development of a spin solid state at low temperature. The honeycomb lattice was simulated using 0.2 nm × 0.2 nm mess size on the μMAG platform,31, 32 with magnetic field applied in‐plane to the lattice. The simulation utilizes the Landau–Lifshitz–Gilbert equation of magnetization relaxation in a damped medium. It is given by33, 34, 35 (1)dmdt = − γm × heff+ αm × dmdt,where γ is the gyromagnetic ratio and α is damping constant. In the above equation, thermal fluctuation is introduced by Langevin dynamics.36 The Langevin dynamics utilizes the concept of white noise of Gaussian form, Γ(t) with a mean at zero, arising due to the thermal fluctuation. Accordingly, each site experiences a white noise as temperature increases. At each time step, the instantaneous thermal field on each site is given by, htherm = Γ(t) 2kBTαγμsΔt, where μs is magnetic moment of simulation element i. The thermal field adds to the original effective field via h(T > 0)eff = h(T = 0)eff + h therm, where h eff(T = 0) = −δH/δm. The Hamiltonian, H, of the system consists of four terms: exchange energy, uniaxial anisotropic energy, magnetostatic energy and the Zeeman energy. For the simulation, we have used exchange stiffness A = 1.0 × 10−11 J m−1, uniaxial anisotropy strength K 1 = −1.0 × 103 J m−3, and damping constant α = 0.2. The simulated hysteresis curves at various temperatures are shown in Figure 5 . Qualitative differences between magnetic hysteresis curves at different temperatures are clearly observed in this figure. The plot of M/M s versus h, where M s is saturation magnetization, depicts a more subtle transition in applied field as temperature reduces. At low temperature (simulation at T = 0 K), magnetic hysteresis not only manifests a sharp transition near zero field but also develops a small plateau near M = 0. The simulated magnetization profile in this state is characterized by the vortex configuration, which is the key element of the spin solid state. Unlike the development of vortex state near zero field at low temperature, the magnetization profile at T = 100 K depicts short‐ranged ordered spin ice state (see the color map). The micromagnetic simulations further confirm the development of spin solid state.