“…First of all, electrospun magnetic fibers exhibit remarkable properties in terms of large specific surface area and small diameter (50-500 nm) due to the high stretching of magnetically functionalized polymer solutions under the application of electrostatic forces. In MFNs fabrication, polyacrylonitrile (PAN), polystyrene (PS) or polyimide (PI) have been commonly used as polymer matrix, while iron, iron oxide, cobalt, nickel, LiCoO 2 , NiCo 2 O 4 , NiFe 2 O 4 , Fe-FeO core-shell nano particles as magnetic fillers [11,[24][25][26][27][28][29][30][31] thermal and optical response [32][33][34][35][36], but only partial studies about the relationships between elasticity and magnetization in similar systems have been performed [37]. On the other hand, recent studies are confirming the relevance of elastic and magnetic properties coupling for the development of new multifunctional nanocomposite materials to be used as sensors and actuators [38][39][40].…”