Figure 4From: Magnetic properties of superparamagnetic nanoparticles loaded into silicon nanotubesSiNT hysteresis curves. Hysteresis curves of SiNTs offering a wall thickness of about 70 nm filled with iron oxide NPs of 4 nm (squares, measured at T = 4 K; circles, measured at T = 300 K) and 10 nm (stars, measured at T = 300 K).Back to article page