Quasi‐One‐Dimensional Assembly of Magnetic Nanoparticles Induced by a 50 Hz Alternating Magnetic Field

Abstract

We′ve got the power: Spoke-like assemblies of magnetic nanoparticles are fabricated by the exposure of a colloidal suspension to an alternating magnetic field of power frequency 50 Hz (see picture). In such a low-frequency alternating magnetic field, the assemblies retain super-paramagnetism.