Table 1. Nanocluster and granule diameters analysed from TEM images and XRD patterns.

Sample	Nanocluster diameter [nm]	Granule diameter [nm]	Coercivity [Oe]	Magnetization at 20 kOe [emu g−1]
S1	16	7.5	0.25	53.8
S2	32	9.0	0.57	60.4
S3	53	11.6	19.1	65.3
S4	80	17.2	35.1	67.8
S5	99	19.7	41.6	69.5
S6	123	26.4	47.7	70.5
S7	152	30.2	47.5	68.7
S8	181	28.1	40.8	72.7
S9	278	31.4	27.3	76.3
S10	422	31.8	32.2	80.4
S11	512	32.2	19.4	74.0

The granule diameters were calculated by Debye-Scherrer’s equation. Coercivity and magnetization values were measured by VSM at RT.