Fig. 3: The network morphology can be sensitively tuned by changing experimental conditions.

a The relationship between the spatial periodicity and the frequencies of the alternating voltage. The inset defines the spatial periodicity. The error bars signify standard deviations. A total of 21 periods were measured for each frequency. b–d The SEM images of the magnetic network deposited by the sinusoidal voltage with 3 Hz, 2 Hz, and 1.33 Hz frequencies, respectively. e The relationship between the distance of the neighboring nucleation sites and the temperatures. The inset shows the typical length of two adjacent nucleation sites in the measurement. The error bars signify standard deviations. A total of 72 triangular patterns were measured for each temperature. f–h SEM micrographs of the network electrodeposited at −0.5, −0.9, and −1.8 °C, respectively. The yellow dashed circles in (f) illustrate the grown hollow triangular patterns. The cyan dashed circles in (g) demonstrate the solid triangular patterns. Source data are provided as a Source Data file.