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(Color online) (a) XRD patterns of the SSMO nanoparticles annealed at different temperatures. (b) and (c) SEM images for the nanoparticles annealed at 700 and 900°, respectively.
(Color online) Temperature-dependent magnetizations under different magnetic fields for the nanosized SSMO with different particle sizes.
(Color online) (a) Magnetic field– and particle size–dependent for the SSMO nanoparticles measured upon cooling (full dots) and warming (open dots) (b) and (c) Particle size dependence of and , respectively.
(Color online) under H = 10 kOe for the nanosized SSMO with different particle sizes. The lines are the best-fitted results by the CW laws. The insets show the particle size dependence of Tp, , and .
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