Non-linear susceptibility and static scaling analysis in permalloy artificial honeycomb lattice

The artificial honeycomb lattice has evolved into a new avenue for the exploration for various novel magnetic phenomena. We have studied the temperature dependent evolution of theoretically predicted magnetic phases, e.g. spin ice, magnetic charge ordered state and the spin order, in a newly fabricated macroscopic size permalloy honeycomb lattice of ultra-small connecting elements, with a typical length of 12 nm. The ultra-small element size results in a small inter-elemental energy of ~ 15 K, thus allows us to use temperature as the feasible tuning parameter for experimental investigation purposes. In this talk, I will present new results on the scaling of non-linear susceptibilities and the associated static scaling in various temperature regimes. The results will be compared to the known scaling coefficient in geometrically frustrated magnet of three-dimensional origin. Finally, I will discuss the evolution of the spin order at low temperature in the comparative framework of other magnetic phases that arise as a function of temperature.