Background Magnetism is a fundamental property of matter. As such, all substances have some type of magnetic property. Magnetic susceptibility refers to an object’s or substance’s ability to become magnetized. If two substances with different magnetic susceptibilities are close to one another, a small local magnetic field gradient is induced. The greater the difference in magnetic susceptibilit...

From our investigation of magnetoelectric properties of a multiferroic phase in Eu0.75Y0.25MnO3 competing with a weak-ferromagnetic phase in magnetic fields, we found intriguing hysteretic behaviors of physical properties with variation of temperature and magnetic field. These hysteretic behaviors arise from the kinetic arrest (dearrest) processes of the first-order multiferroic-weak-ferromagne...

Antiparallel interlayer magnetic coupling between layers of Fe3O4 and Mn3O4 , both ferromagnetic, was reported in a recent study. The interlayer magnetic coupling may be affected by the magnetic property at the interface. In order to understand the interplay between the electronic configuration, the atomic structure and the magnetic property at the interface, we have performed transition metal ...

Iron oxide (Fe3O4) nanoparticles with average sizes of 10 nm were synthesized by a chemical coprecipitation method in the presence of chitosan. Chitosan as a natural polymer which can be extracted from crustaceans was used in the synthesis process in order to achieve more dispersed nanoparticles. Also, chitosan was used to obtain functionalized magnetic nanoparticles for using in different area...