Applications of magnetic core-shell particles

Core-shell particles can be created, e.g., as hard magnetic shell and soft magnetic core or vice versa. Due to the progress in controlling the particle properties during synthesis and in characterizing the shape and magnetic properties, such bi-magnetic structures can nowadays be utilized for a variety of different applications, e.g. in magnetic recording, magneto-transport, biomedicine, or microwave absorption. Although not all properties are fully understood and controllable yet, such core-shell particles offer great potential for future applications.

Design of active magneto-optic elements

While macroscopic passive magneto-optic devices, such as polarization rotators, are common optical components used in a variety of experiments, nano-scale active magneto-optic elements are an important part of quantum information transport. Plasmon resonances (light induced collective electron oscillations) can be used to tailor the Kerr rotation and ellipticity in a broad range, up to controlled sign changes.

Overview of Origami-inspired active structures

The combination of active materials with Origami-inspired folding techniques results in self-folding or -unfolding structures. Such active materials can fold / unfold parts by changing their length, bending or resetting their preset folded shape. Possible active materials are, amongst others, shape memory allows, shape memory polymers, ionic electro-active polymers, or piezoelectric ceramics and polymers, depending on the desired application. Materials can be activated thermally, chemically, optically, electrically, or magnetically.

Organic Spintronics

The MRS Bulletin reports about recent material research, concentrating on topics of high interest in which new research results and developments can be presented. The July 2014 issue  deals with the field of organic spintronics, in which the guest editors J. S. Moodera, B. Koopmans, and P. M. Oppeneer give a short introduction.

The 2014 Magnetism Roadmap

The research field of magnetism ranges from daily-life applications to novel ideas and products, such as magnetic sensors, memory cells, or nanoparticles used for biomedicine. In such a broad field, it is often hard to keep track of the latest developments. All the better to have an actual roadmap, pointing out new research areas of special interest, written by specialists for this topic.